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ChangeLog
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2007-07-06 Steven Sturges <[email protected]>
* src/preprocessors/Stream5/snort_stream5_tcp.c:
Fixed potential invalid memory access when require 3whs option is used.
2007-06-28 Steven Sturges <[email protected]>
* src/sfutil/acsmx2.c:
* src/sfutil/bnfa_search.c:
Revert previous changes as they resulted in some false negatives
with mixed case patterns and rules. Will address in a future release.
* src/detection-plugins/sp_react.c:
Fixed problem with segfault with flexresp. Thanks to Keith Pachulski
for reporting the issue.
2007-06-20 Steven Sturges <[email protected]>
* src/sfutil/acsmx2.c:
* src/sfutil/acsmx.h:
* src/sfutil/bnfa_search.c:
Performance improvement to track the last state of a pattern that
match, so if it hits that state again immediately, don't go
re-evaluate all of the same rules.
* src/decode.c:
* src/detect.c:
* src/snort.h:
* src/util.c:
Properly handle UDP checksum if checksum value is 0 in header (do not
calculate). Add stat that tracks number of failed checksums.
* src/detection-plugins/sp_pcre.c:
Add /P flag to PCRE detection to check HTTP inspect's normalized
client request body.
* src/dynamic-preprocessors/Makefile.am:
* src/dynamic-examples/Makefile.am:
Fix header file replication.
* src/output-plugins/spo_alert_prelude.c:
Update to write data at Snort exit. Thanks Yoann Vandoorselaere for
the patch.
* src/parser.c:
Update to max line length. Mark 'stateless' option to be deprecated,
use flow:stateless.
2007-06-19 Steven Sturges <[email protected]>
* src/byte_extract.h:
* src/event_queue.h:
* src/event_wrapper.h:
* src/inline.h:
* src/ipv6.c:
* src/ipv6.h:
* src/packet_time.h:
* src/plugin_enum.h:
* src/preprocids.h:
* src/sfthreshold.h:
* src/snort_packet_header.h:
* src/detection-plugins/sp_asn1.h:
* src/detection-plugins/sp_asn1_detect.h:
* src/detection-plugins/sp_flowbits.h:
* src/detection-plugins/sp_ip_proto.c:
* src/dynamic-examples/dynamic-preprocessor/sf_preproc_info.h:
* src/dynamic-examples/dynamic-preprocessor/spp_example.c:
* src/dynamic-examples/dynamic-rule/detection_lib_meta.h:
* src/dynamic-examples/dynamic-rule/rules.c:
* src/dynamic-examples/dynamic-rule/sid109.c:
* src/dynamic-examples/dynamic-rule/sid637.c:
* src/dynamic-preprocessors/ftptelnet/hi_util_kmap.c:
* src/dynamic-preprocessors/ftptelnet/hi_util_kmap.h:
* src/dynamic-preprocessors/ftptelnet/hi_util_xmalloc.c:
* src/dynamic-preprocessors/ftptelnet/sf_preproc_info.h:
* src/dynamic-preprocessors/smtp/sf_preproc_info.h:
* src/preprocessors/portscan.c:
* src/preprocessors/portscan.h:
* src/preprocessors/snort_httpinspect.c:
* src/preprocessors/snort_httpinspect.h:
* src/preprocessors/snort_stream4_session.h:
* src/preprocessors/snort_stream4_udp.h:
* src/preprocessors/spp_flow.h:
* src/preprocessors/spp_httpinspect.c:
* src/preprocessors/spp_httpinspect.h:
* src/preprocessors/spp_sfportscan.c:
* src/preprocessors/spp_sfportscan.h:
* src/preprocessors/spp_stream5.c:
* src/preprocessors/str_search.c:
* src/preprocessors/str_search.h:
* src/preprocessors/stream.h:
* src/preprocessors/HttpInspect/anomaly_detection/hi_ad.c:
* src/preprocessors/HttpInspect/client/hi_client.c:
* src/preprocessors/HttpInspect/client/hi_client_norm.c:
* src/preprocessors/HttpInspect/event_output/hi_eo_log.c:
* src/preprocessors/HttpInspect/include/hi_ad.h:
* src/preprocessors/HttpInspect/include/hi_client.h:
* src/preprocessors/HttpInspect/include/hi_client_norm.h:
* src/preprocessors/HttpInspect/include/hi_eo.h:
* src/preprocessors/HttpInspect/include/hi_eo_events.h:
* src/preprocessors/HttpInspect/include/hi_eo_log.h:
* src/preprocessors/HttpInspect/include/hi_include.h:
* src/preprocessors/HttpInspect/include/hi_mi.h:
* src/preprocessors/HttpInspect/include/hi_norm.h:
* src/preprocessors/HttpInspect/include/hi_return_codes.h:
* src/preprocessors/HttpInspect/include/hi_server.h:
* src/preprocessors/HttpInspect/include/hi_si.h:
* src/preprocessors/HttpInspect/include/hi_ui_config.h:
* src/preprocessors/HttpInspect/include/hi_ui_iis_unicode_map.h:
* src/preprocessors/HttpInspect/include/hi_ui_server_lookup.h:
* src/preprocessors/HttpInspect/include/hi_util.h:
* src/preprocessors/HttpInspect/include/hi_util_hbm.h:
* src/preprocessors/HttpInspect/include/hi_util_kmap.h:
* src/preprocessors/HttpInspect/include/hi_util_xmalloc.h:
* src/preprocessors/HttpInspect/mode_inspection/hi_mi.c:
* src/preprocessors/HttpInspect/normalization/hi_norm.c:
* src/preprocessors/HttpInspect/server/hi_server.c:
* src/preprocessors/HttpInspect/session_inspection/hi_si.c:
* src/preprocessors/HttpInspect/user_interface/hi_ui_config.c:
* src/preprocessors/HttpInspect/user_interface/hi_ui_iis_unicode_map.c:
* src/preprocessors/HttpInspect/user_interface/hi_ui_server_lookup.c:
* src/preprocessors/HttpInspect/utils/hi_util_hbm.c:
* src/preprocessors/HttpInspect/utils/hi_util_kmap.c:
* src/preprocessors/HttpInspect/utils/hi_util_xmalloc.c:
* src/preprocessors/Stream5/snort_stream5_icmp.c:
* src/preprocessors/Stream5/snort_stream5_icmp.h:
* src/preprocessors/Stream5/snort_stream5_session.h:
* src/preprocessors/Stream5/snort_stream5_tcp.c:
* src/preprocessors/Stream5/snort_stream5_tcp.h:
* src/preprocessors/Stream5/snort_stream5_udp.c:
* src/preprocessors/Stream5/snort_stream5_udp.h:
* src/preprocessors/Stream5/stream5_common.c:
* src/preprocessors/Stream5/stream5_common.h:
* src/preprocessors/flow/common_defs.h:
* src/preprocessors/flow/flow.c:
* src/preprocessors/flow/flow.h:
* src/preprocessors/flow/flow_cache.c:
* src/preprocessors/flow/flow_cache.h:
* src/preprocessors/flow/flow_callback.c:
* src/preprocessors/flow/flow_callback.h:
* src/preprocessors/flow/flow_class.c:
* src/preprocessors/flow/flow_class.h:
* src/preprocessors/flow/flow_config.h:
* src/preprocessors/flow/flow_error.h:
* src/preprocessors/flow/flow_hash.c:
* src/preprocessors/flow/flow_hash.h:
* src/preprocessors/flow/flow_print.c:
* src/preprocessors/flow/flow_print.h:
* src/preprocessors/flow/flow_stat.c:
* src/preprocessors/flow/flow_stat.h:
* src/preprocessors/flow/int-snort/flow_packet.c:
* src/preprocessors/flow/int-snort/flow_packet.h:
* src/preprocessors/flow/portscan/flowps.c:
* src/preprocessors/flow/portscan/flowps.h:
* src/preprocessors/flow/portscan/flowps_snort.c:
* src/preprocessors/flow/portscan/flowps_snort.h:
* src/preprocessors/flow/portscan/scoreboard.c:
* src/preprocessors/flow/portscan/scoreboard.h:
* src/preprocessors/flow/portscan/server_stats.c:
* src/preprocessors/flow/portscan/server_stats.h:
* src/preprocessors/flow/portscan/unique_tracker.c:
* src/preprocessors/flow/portscan/unique_tracker.h:
* src/sfutil/acsmx2.h:
* src/sfutil/asn1.c:
* src/sfutil/asn1.h:
* src/sfutil/ipobj.c:
* src/sfutil/ipobj.h:
* src/sfutil/sfeventq.c:
* src/sfutil/sfeventq.h:
* src/sfutil/sfghash.c:
* src/sfutil/sfghash.h:
* src/sfutil/sfhashfcn.c:
* src/sfutil/sfhashfcn.h:
* src/sfutil/sflsq.c:
* src/sfutil/sflsq.h:
* src/sfutil/sfmemcap.c:
* src/sfutil/sfmemcap.h:
* src/sfutil/sfsnprintfappend.c:
* src/sfutil/sfsnprintfappend.h:
* src/sfutil/sfthd.c:
* src/sfutil/sfthd.h:
* src/sfutil/sfxhash.c:
* src/sfutil/sfxhash.h:
* src/sfutil/util_math.c:
* src/sfutil/util_math.h:
* src/sfutil/util_net.c:
* src/sfutil/util_net.h:
* src/sfutil/util_str.c:
* src/sfutil/util_str.h:
* src/win32/WIN32-Code/inet_aton.c:
* src/win32/WIN32-Code/name.h:
Update copyright dates & info and add GPL header.
2007-06-01 Steven Sturges <[email protected]>
* src/util.c:
Update to hourly timestats from Bill Parker.
2007-06-01 Steven Sturges <[email protected]>
* src/preprocessors/spp_frag3.c:
Fix configuration parsing to validate parameters for memcap,
max_frags, prealloc_frags. Thanks to Joel Ebrahimi for pointing
out the issue.
2007-05-30 Steven Sturges <[email protected]>
* src/dynamic-preprocessors/smtp/smtp_util.c:
* src/dynamic-preprocessors/smtp/smtp_util.h:
* src/dynamic-preprocessors/smtp/smtp_xlink2state.c:
* src/dynamic-preprocessors/smtp/snort_smtp.c:
Cleanup xlink2state processing and remove potential read beyond
end of packet.
* src/preprocessors/stream_api.h:
* src/preprocessors/Stream5/snort_stream5_tcp.c:
Update handling of timed out session cleanup when the 'same' (IPs/ports)
session is picked up midstream.
2007-05-23 Steven Sturges <[email protected]>
* doc/snort_manual.tex:
* doc/snort_manual.pdf:
* doc/README.stream5:
* src/preprocessors/Stream5/snort_stream5_tcp.c:
* src/preprocessors/Stream5/stream5_common.h:
Update Stream5 to use 65535 << 14 as max allowable value for
the 'max_window' option.
* src/decode.c:
* src/detect.c:
* src/snort.c:
* src/snort.h:
When checking for IPv6 BSD frag vulnerability, use a pseudo packet
with false IPv4 headers for logging purposes rather than writing
the IPv4 header within the original packet buffer.
* src/preprocessors/spp_frag3.c:
Update to not change original packet buffer when rebuilding fragments
with IP options.
* src/preprocessors/spp_rpc_decode.c:
* src/preprocessors/spp_rpc_decode.h:
Update to use the altdecode buffer for normalization.
2007-05-22 Steven Sturges <[email protected]>
* doc/snort_manual.tex:
* doc/snort_manual.pdf:
Update for 2.7.0.
* configure.in:
* src/debug.c:
* src/debug.h:
* src/dynamic-plugins/sf_dynamic_plugins.c:
* src/dynamic-plugins/sf_dynamic_preprocessor.h:
* src/dynamic-preprocessors/dcerpc/dcerpc.c:
* src/dynamic-preprocessors/dcerpc/smb_andx_decode.c:
* src/win32/WIN32-Includes/config.h:
Check for wchar.h and don't try to use it if not present.
Fixes builds on OpenBSD 3.5 and others.
* src/dynamic-plugins/sf_dynamic_detection.h:
* src/dynamic-plugins/sf_dynamic_plugins.c:
* src/dynamic-plugins/sp_preprocopt.c:
* src/dynamic-plugins/sp_preprocopt.h:
* src/dynamic-preprocessors/ftptelnet/ftp_bounce_lookup.c:
* src/dynamic-preprocessors/ftptelnet/ftp_cmd_lookup.c:
* src/dynamic-preprocessors/ftptelnet/ftpp_ui_client_lookup.c:
* src/dynamic-preprocessors/ftptelnet/ftpp_ui_server_lookup.c:
* src/dynamic-preprocessors/ftptelnet/ftpp_ui_config.c:
* src/dynamic-preprocessors/ftptelnet/ftpp_ui_config.h:
* src/dynamic-preprocessors/ftptelnet/ppftp.c:
* src/dynamic-preprocessors/ftptelnet/snort_ftptelnet.c:
* src/dynamic-preprocessors/ftptelnet/snort_ftptelnet.h:
* src/dynamic-preprocessors/ftptelnet/spp_ftptelnet.c:
* src/dynamic-preprocessors/smtp/smtp_util.c:
* src/dynamic-preprocessors/smtp/smtp_util.h:
* src/dynamic-preprocessors/smtp/snort_smtp.c:
* src/event_queue.c:
* src/event_queue.h:
* src/ipv6.c:
* src/ipv6.h:
* src/mempool.c:
* src/parser.c:
* src/preprocessors/spp_frag3.c:
* src/preprocessors/spp_httpinspect.c:
* src/preprocessors/Stream5/snort_stream5_icmp.c:
* src/preprocessors/Stream5/snort_stream5_session.c:
* src/preprocessors/Stream5/snort_stream5_tcp.c:
* src/preprocessors/Stream5/snort_stream5_udp.c:
* src/sfutil/asn1.c:
* src/sfutil/asn1.h:
* src/sfutil/sfeventq.c:
* src/sfutil/sfeventq.h:
* src/sfutil/sfksearch.c:
* src/sfutil/sfksearch.h:
* src/sfutil/sfxhash.c:
* src/snort.c:
Added code to cleanup memory at Snort exit/restart.
* src/output-plugins/spo_log_tcpdump.c:
Update to timestamp writing on 64bit platforms.
* src/dynamic-preprocessors/smtp/smtp_normalize.c:
Update normalization for postfix and sendmail servers that
normalize any space except '\n'.
* src/preprocessors/str_search.c:
* src/sfutil/bnfa_search.c:
* src/sfutil/mpse.c:
Use BNFA, smaller memory footprint for searches from SMTP.
* src/preprocessors/HttpInspect/client/hi_client.c:
* src/preprocessors/HttpInspect/client/hi_client_norm.c:
* src/preprocessors/HttpInspect/include/hi_eo_log.h:
* src/preprocessors/HttpInspect/include/hi_si.h:
* src/preprocessors/HttpInspect/normalization/hi_norm.c:
Update way in which Body vs URI's are normalized, checked for
anomalies and alerted on.
* src/preprocessors/snort_stream4_udp.c:
Fix use of ignore_any keyword when dealing with portscan
and/or rules that have flow/flowbits.
* src/preprocessors/Stream5/snort_stream5_tcp.c:
Update to timestamp handling and anomaly detection with invalid
timestamps on RST packets.
* src/snort.c:
* src/snort.h:
Add --loop option to be used with -r for pcap readback mode.
2007-05-09 Adam Keeton <[email protected]>
* src/preprocessors/HttpInspect/client/hi_client_norm.c:
* src/preprocessors/HttpInspect/include/hi_si.h:
* src/preprocessors/HttpInspect/normalization/hi_norm.c:
Added code to prevent URI-related alerts from firing when the
body is being normalized.
2007-05-08 Adam Keeton <[email protected]>
* src/preprocessors/HttpInspect/client/hi_client.c:
Fixed pointer initialization relating to POST normalization.
2007-04-27 Steven Sturges <[email protected]>
* src/decode.h:
* src/detection-plugins/sp_pattern_match.c:
* src/detection-plugins/sp_pattern_match.h:
* src/dynamic-plugins/sf_dynamic_common.h:
* src/dynamic-plugins/sf_engine/sf_snort_detection_engine.c:
* src/dynamic-plugins/sf_engine/sf_snort_plugin_api.h:
* src/dynamic-plugins/sf_engine/sf_snort_plugin_content.c:
* doc/snort_manual.tex:
* doc/snort_manual.pdf:
Provide new rule keyword modifier for content option that allows a
rule to search for a pattern in the body of an HTTP client request.
* src/util.c:
* src/preprocessors/snort_httpinspect.c:
* src/preprocessors/spp_httpinspect.c:
* src/preprocessors/HttpInspect/client/hi_client.c:
* src/preprocessors/HttpInspect/client/hi_client_norm.c:
* src/preprocessors/HttpInspect/include/hi_client.h:
* src/preprocessors/HttpInspect/include/hi_include.h:
* src/preprocessors/HttpInspect/include/hi_ui_config.h:
* src/preprocessors/HttpInspect/include/hi_util_xmalloc.h:
* src/preprocessors/HttpInspect/normalization/hi_norm.c:
* src/preprocessors/HttpInspect/user_interface/hi_ui_config.c:
* src/preprocessors/HttpInspect/user_interface/hi_ui_server_lookup.c:
* src/preprocessors/HttpInspect/utils/hi_util_kmap.c:
Update to normalize the body of a client request to allow rules to
check specifically for parameters of a POST or GET request. Also
add stats that are part of the hourly stats that track various
HTTP encodings and normalizations that have occured.
* src/preprocessors/spp_stream4.c:
Fix potential memory leak.
* doc/README.ipv6:
Updates for clarity.
* doc/faq.tex:
* configure.in:
Add minimal PCRE version.
* etc/gen-msg.map:
* src/decode.c:
* src/generators.h:
* src/preprocessors/Stream5/snort_stream5_tcp.c:
Handle TCP window scale option that is > 14. Added decoder alert for
this and adjust the scale per RFC 1323 in Stream5.
* etc/snort.conf:
Make Stream5 the default stream engine.
* src/decode.c:
Add alert for multiple GRE encapsulations.
* src/ipv6.c:
Additional structure name changes to avoid conflicts on Win32.
* src/parser.c:
Update the maximum number of entries in an IP List to 1024 (was 128).
Added ability to configure Timestats interval, default is 3600 seconds
(1 hour) when enabled via --enable-timestats.
* src/snort.c:
* src/snort.h:
* src/util.h:
Revised signal handler for Timestats.
* src/util.c:
Update Timestats to include Wifi, GRE, Frag & TCP Stream info. Thanks
to Bill Parker for the update.
* src/detection-plugins/sp_icmp_code_check.c:
* src/detection-plugins/sp_icmp_type_check.c:
Update to parsing of icmp rule options for better grammar enforcement.
* src/detection-plugins/sp_respond.c:
* src/detection-plugins/sp_respond2.c:
Specify TCP window of 0 for RST packets that are sent.
* src/dynamic-plugins/sf_dynamic_plugins.c:
* src/dynamic-plugins/sf_dynamic_preprocessor.h:
* src/dynamic-preprocessors/sf_dynamic_preproc_lib.c:
Make Preprocess() function available to dynamic preprocessors. Thanks
Vladimir Shcherbakov for the request.
* src/dynamic-preprocessors/dcerpc/dcerpc.c:
* src/dynamic-preprocessors/dcerpc/dcerpc.h:
* src/dynamic-preprocessors/dcerpc/smb_andx_decode.c:
* src/dynamic-preprocessors/dcerpc/snort_dcerpc.c:
Code cleanup and a minor reorganization.
* src/dynamic-preprocessors/smtp/snort_smtp.c:
Fix truncated buffer in when compiled in debug mode.
* src/preprocessors/perf-base.c:
* src/preprocessors/perf-base.h:
* src/preprocessors/snort_stream4_session.c:
* src/preprocessors/spp_stream4.c:
* src/preprocessors/stream_api.h:
* src/preprocessors/Stream5/snort_stream5_session.c:
* src/preprocessors/Stream5/snort_stream5_tcp.c:
Update to track additional stats for TCP session cache and session states.
* src/preprocessors/spp_perfmonitor.c:
Fix behaviour of 'accumlate' option.
* src/preprocessors/spp_stream4.c:
* src/preprocessors/Stream5/snort_stream5_tcp.c:
Update for 64bit platforms.
* src/preprocessors/spp_stream5.c:
* src/preprocessors/Stream5/snort_stream5_session.c:
* src/preprocessors/Stream5/snort_stream5_tcp.c:
* src/preprocessors/Stream5/snort_stream5_udp.c:
* src/preprocessors/Stream5/snort_stream5_icmp.c:
* doc/README.stream5:
Updates to config validation. Code cleanup for readability. Update
TCP Window Scale use and sequence validation to be RFC 1323 compliant.
Document min/max values for parameters, etc.
2007-04-13 Steven Sturges <[email protected]>
* src/decode.h:
* src/decode.c:
* src/ipv6.c:
Changed structure declaration and usage to not conflict with OpenBSD.
2007-03-28 Steven Sturges <[email protected]>
* rpm/snort.spec:
Remove smp_flags from spec file to not parallelize building.
* doc/README.ipv6
* etc/gen-msg.map:
* src/Makefile.am:
* src/decode.c:
* src/decode.h:
* src/generators.h:
* src/ipv6.c (added):
* src/ipv6.h (added):
* src/parser.c:
* src/snort.c:
* src/snort.h:
* src/win32/WIN32-Prj/snort.dsp:
Added ability for Snort to track fragmented ICMPv6 to check for the
remote BSD exploit (Bugtraq ID 22901, CVE-2007-1365).
* src/win32/WIN32-Code/syslog.c:
* src/win32/WIN32-Code/win32_service.c:
* src/plugbase.c:
* src/preprocessors/perf-base.c:
* src/preprocessors/stream_ignore.c:
* src/profiler.c:
* src/snort.c:
Cleanup to use safe snprintf and strncpy functions, check return values
of SafeMemcpy, use calloc or SnortAlloc, and other static size buffer
bounds checks.
* src/parser.c:
Fix issue with printing rule information twice.
* src/profiler.h:
* src/preprocessors/spp_flow.c:
Fix miscalculation of processor time attributable to flow.
* src/dynamic-plugins/sp_dynamic.c:
* src/dynamic-plugins/sp_dynamic.h:
* src/dynamic-plugins/sf_engine/sf_snort_detection_engine.c:
Added hasXXX functions for Content, ByteTest, and PCRE.
* src/dynamic-preprocessors/dcerpc/dcerpc.c:
* src/dynamic-preprocessors/dcerpc/dcerpc.h:
* src/dynamic-preprocessors/dcerpc/dcerpc_config.c:
* src/dynamic-preprocessors/dcerpc/dcerpc_util.c:
* src/dynamic-preprocessors/dcerpc/dcerpc_util.h:
* src/dynamic-preprocessors/dcerpc/sf_preproc_info.h:
* src/dynamic-preprocessors/dcerpc/smb_andx_decode.c:
* src/dynamic-preprocessors/dcerpc/smb_andx_decode.h:
* src/dynamic-preprocessors/dcerpc/smb_andx_structs.h:
* src/dynamic-preprocessors/dcerpc/smb_structs.h:
* src/dynamic-preprocessors/dcerpc/snort_dcerpc.c:
* src/dynamic-preprocessors/dcerpc/snort_dcerpc.h:
* src/dynamic-preprocessors/dcerpc/spp_dcerpc.c:
Code cleanup to perform bounds checking, validation of memcpy
success, remove potential memory leak. Code readability improvements
and update DCE endianness checks.
* src/dynamic-preprocessors/dns/sf_preproc_info.h:
* src/dynamic-preprocessors/dns/spp_dns.c:
Code cleanup for initialization of memory allocations and add
early termination when at end of packet payload.
* src/dynamic-preprocessors/ftptelnet/ftpp_si.c:
* src/dynamic-preprocessors/ftptelnet/ftpp_si.h:
* src/dynamic-preprocessors/ftptelnet/hi_util_kmap.c:
* src/dynamic-preprocessors/ftptelnet/hi_util_xmalloc.c:
* src/dynamic-preprocessors/ftptelnet/pp_ftp.c:
* src/dynamic-preprocessors/ftptelnet/sf_preproc_info.h:
* src/dynamic-preprocessors/ftptelnet/snort_ftptelnet.c:
Code cleanup for initialization of memory allocations and remove
dead/unused code for directory and user state tracking.
* src/dynamic-preprocessors/smtp/sf_preproc_info.h:
* src/dynamic-preprocessors/smtp/smtp_config.c:
* src/dynamic-preprocessors/smtp/smtp_log.c:
* src/dynamic-preprocessors/smtp/smtp_normalize.c:
* src/dynamic-preprocessors/smtp/smtp_normalize.h:
* src/dynamic-preprocessors/smtp/snort_smtp.c:
Code cleanup for initialization of memory allocations, fix normalization
to prevent read beyond packet payload. Generate SMTP command overflow
even if packet payload doesn't contain complete command (missing LF).
* src/preprocessors/spp_frag3.c:
Further update to handle iptables (and other datalink layers) that
do not have ethernet headers to be included in rebuilt fragment.
* src/preprocessors/Stream5/snort_stream5_icmp.c:
* src/preprocessors/Stream5/snort_stream5_tcp.c:
* src/preprocessors/Stream5/snort_stream5_udp.c:
* src/preprocessors/Stream5/stream5_common.c:
* src/preprocessors/Stream5/stream5_common.h:
* doc/README.stream5:
* doc/snort_manual.tex:
* doc/snort_manual.pdf:
Add verification of options for ICMP, TCP, UDP configurations are
within reasonable limits. Reorganize reassembly flush initialization.
Print list of UDP rules that are effectively ignored with ignore_any_rules
option. Update session timeout handling.
* src/sfutil/sfxhash.c:
* src/sfutil/sfxhash.h:
* src/preprocessors/snort_stream4_session.c:
* src/preprocessors/Stream5/snort_stream5_session.c:
Allow use of limit on number of nodes in hash table instead of
relying on memcap for limiting sessions.
* src/bounds.h:
* src/debug.c:
* src/detect.c:
* src/fpdetect.c:
* src/log.c:
* src/parser.c:
* src/pcrm.c:
* src/plugbase.c:
* src/profiler.c:
* src/sfthreshold.c:
* src/snort.c:
* src/ubi_BinTree.c:
* src/util.c:
* src/util.h:
* src/detection-plugins/sp_pattern_match.c:
* src/detection-plugins/sp_react.c:
* src/detection-plugins/sp_session.c:
* src/dynamic-plugins/sf_dynamic_engine.h:
* src/dynamic-plugins/sf_dynamic_plugins.c:
* src/dynamic-plugins/sf_dynamic_preprocessor.h:
* src/dynamic-preprocessors/ssh/spp_ssh.c:
* src/output-plugins/spo_alert_prelude.c:
* src/output-plugins/spo_alert_syslog.c:
* src/output-plugins/spo_alert_unixsock.c:
* src/output-plugins/spo_database.c:
* src/output-plugins/spo_log_ascii.c:
* src/output-plugins/spo_log_tcpdump.c:
* src/output-plugins/spo_unified.c:
* src/parser/IpAddrSet.c:
* src/preprocessors/perf-base.c:
* src/preprocessors/perf.c:
* src/preprocessors/snort_httpinspect.c:
* src/preprocessors/HttpInspect/client/hi_client.c:
* src/preprocessors/HttpInspect/event_output/hi_eo_log.c:
* src/preprocessors/HttpInspect/utils/hi_util_kmap.c:
* src/preprocessors/snort_stream4_session.c:
* src/preprocessors/snort_stream4_udp.c:
* src/preprocessors/spp_bo.c:
* src/preprocessors/spp_frag3.c:
* src/preprocessors/spp_perfmonitor.c:
* src/preprocessors/spp_sfportscan.c:
* src/preprocessors/spp_stream4.c:
* src/preprocessors/spp_stream5.c:
* src/preprocessors/stream_api.h:
* src/preprocessors/stream_ignore.c:
* src/preprocessors/Stream5/snort_stream5_tcp.c:
* src/preprocessors/Stream5/snort_stream5_udp.c:
* src/preprocessors/flow/flow_print.c:
* src/preprocessors/flow/flow_print.h:
* src/sfutil/acsmx2.c:
* src/sfutil/ipobj.c:
* src/sfutil/sfghash.c:
* src/sfutil/sfmemcap.c:
* src/sfutil/sfxhash.c:
Cleanup to use safe snprintf and strncpy functions, check return values
of SafeMemcpy, use calloc or SnortAlloc, and other static size buffer
bounds checks. Add handling for FatalError not returning for static
code analysis tools.
* src/sfutil/sfthd.c:
Fix memory leak in global config. Thanks Boris Lytochkin for pointing
this out.
2007-02-20 Steven Sturges <[email protected]>
* src/util.c:
Update copyright date to include 2007.
2007-02-17 Steven Sturges <[email protected]>
* src/parser.c:
Code cleanup, remove tab characters going to syslog.
* src/detection-plugins/sp_clientserver.c:
Handle flow keyword with Stream5 UDP sessions.
* src/dynamic-preprocessors/Makefile.am:
* src/dynamic-preprocessors/dcerpc/dcerpc.c:
* src/dynamic-preprocessors/dcerpc/smb_andx_decode.c:
Add bounds checking to ReassembleSMBWriteX; use Safememcpy for calculated
length buffer copies.
2007-02-09 Steven Sturges <[email protected]>
* configure.in:
Added support for libpcap that depends on libpfring. Thanks to
Jason Wallace for the patch. Also updated description as to why
libpcap check might fail and what files might be missing, thanks
to James Affeld for that suggestion.
* src/preprocessors/spp_stream5.c:
* src/preprocessors/Stream5/snort_stream5_tcp.c:
Update configuration parsing and validation checks and fix issue
with static flushpoints not really being static.
* src/output-plugins/spo_database.c:
Code cleanup to check that a query was not truncated when using
snprintf and guarantee NULL terminated string.
2007-02-07 Steven Sturges <[email protected]>
* src/decode.c:
* src/detection-plugins/sp_ip_same_check.c:
* src/detection-plugins/sp_pattern_match.c:
* src/detection-plugins/sp_react.c:
* src/dynamic-plugins/sf_dynamic_plugins.c:
* src/dynamic-plugins/sf_engine/sf_snort_plugin_loop.c:
* src/dynamic-preprocessors/dcerpc/snort_dcerpc.c:
* src/dynamic-preprocessors/dns/spp_dns.c:
* src/dynamic-preprocessors/ftptelnet/snort_ftptelnet.c:
* src/dynamic-preprocessors/smtp/smtp_config.c:
* src/dynamic-preprocessors/smtp/smtp_util.c:
* src/dynamic-preprocessors/ssh/spp_ssh.c:
* src/parser.c:
* src/plugbase.c:
* src/preprocessors/flow/flow_print.c:
* src/preprocessors/flow/portscan/flowps_snort.c:
* src/preprocessors/flow/portscan/scoreboard.c:
* src/preprocessors/HttpInspect/event_output/hi_eo_log.c:
* src/preprocessors/snort_httpinspect.c:
* src/preprocessors/spp_bo.c:
* src/preprocessors/spp_stream4.c:
* src/snort.c:
* src/tag.c:
* src/win32/WIN32-Code/misc.c:
Code & warning cleanup.
* src/parser.c:
Add file and line number to an error message. Thanks to
rmkml for pointing out the omission.
2007-02-05 Steven Sturges <[email protected]>
* src/dynamic-plugins/sf_dynamic_engine.h:
* src/dynamic-plugins/sf_dynamic_plugins.c:
* src/dynamic-plugins/sf_dynamic_preprocessor.h:
* src/dynamic-plugins/sf_engine/sf_snort_detection_engine.c:
* src/dynamic-plugins/sf_engine/sf_snort_plugin_api.c:
* src/dynamic-plugins/sp_preprocopt.c:
* src/dynamic-preprocessors/ftptelnet/ftp_bounce_lookup.c:
* src/dynamic-preprocessors/ftptelnet/ftp_cmd_lookup.c:
* src/dynamic-preprocessors/ftptelnet/ftpp_si.c:
* src/dynamic-preprocessors/ftptelnet/ftpp_ui_client_lookup.c:
* src/dynamic-preprocessors/ftptelnet/ftpp_ui_config.c:
* src/dynamic-preprocessors/ftptelnet/ftpp_ui_server_lookup.c:
* src/dynamic-preprocessors/ftptelnet/pp_ftp.c:
* src/dynamic-preprocessors/ftptelnet/snort_ftptelnet.c:
* src/dynamic-preprocessors/ftptelnet/spp_ftptelnet.c:
* src/dynamic-preprocessors/smtp/smtp_config.c:
* src/fpdetect.c:
* src/output-plugins/spo_csv.c:
* src/output-plugins/spo_database.c:
* src/output-plugins/spo_log_ascii.c:
* src/parser/IpAddrSet.c:
* src/parser.c:
* src/plugbase.c:
* src/preprocessors/HttpInspect/client/hi_client.c:
* src/preprocessors/HttpInspect/client/hi_client_norm.c:
* src/preprocessors/HttpInspect/event_output/hi_eo_log.c:
* src/preprocessors/HttpInspect/mode_inspection/hi_mi.c:
* src/preprocessors/HttpInspect/normalization/hi_norm.c:
* src/preprocessors/HttpInspect/server/hi_server.c:
* src/preprocessors/HttpInspect/session_inspection/hi_si.c:
* src/preprocessors/HttpInspect/user_interface/hi_ui_config.c:
* src/preprocessors/HttpInspect/user_interface/hi_ui_iis_unicode_map.c:
* src/preprocessors/HttpInspect/user_interface/hi_ui_server_lookup.c:
* src/preprocessors/snort_httpinspect.c:
* src/preprocessors/spp_bo.c:
* src/preprocessors/spp_httpinspect.c:
* src/preprocessors/spp_sfportscan.c:
* src/preprocessors/spp_stream4.c:
* src/preprocessors/Stream5/snort_stream5_tcp.c:
* src/sfutil/acsmx2.c:
* src/sfutil/ipobj.c:
* src/signature.c:
* src/snort.c:
* src/tag.c:
* src/ubi_BinTree.c:
* src/util.h:
More code cleanup, eliminate warnings on Win32 platform.
2007-02-02 Steven Sturges <[email protected]>
* doc/README.stream5:
Cleanup spelling, etc.
* src/bounds.h:
* src/preprocessors/spp_frag3.c:
Fix issue when Snort is inline using iptables, without either the
ipconntrack or NAT modules. This should not occur using the recommended
snort inline configuration, since the OS is supposed to handle IP
fragment reassembly. The Ethernet header doesn't exist in the packet
received by Snort, causing snort to dereference an invalid pointer.
Thanks to Panda Software and Joel Ebrahimi for reporting the issue."
* src/parser.c:
Fix benign warning when using -E on Win32.
* src/plugbase.c:
* src/preprocessors/spp_telnet_negotiation.c (removed):
* src/preprocessors/spp_telnet_negotiation.h (removed):
* src/preprocessors/Makefile.am:
* src/win32/WIN32-Prj/snort.dsp:
Removed deprecated telnet preprocessor.
* src/profiler.c:
* src/profiler.h:
Added profiling code for 64 bit Intel and PPC platforms.
* src/decode.h:
* src/detect.c:
* src/fpdetect.c:
* src/log.c:
* src/mstring.c:
* src/parser.c:
* src/plugbase.c:
* src/profiler.c:
* src/profiler.h:
* src/sfthreshold.c:
* src/signature.c:
* src/snort.c:
* src/strlcatu.c:
* src/strlcpyu.c:
* src/ubi_BinTree.c:
* src/util.c:
* src/util.h:
* src/detection-plugins/sp_flowbits.c:
* src/detection-plugins/sp_pattern_match.c:
* src/detection-plugins/sp_pcre.c:
* src/detection-plugins/sp_react.c:
* src/detection-plugins/sp_respond.c:
* src/detection-plugins/sp_ttl_check.c:
* src/dynamic-plugins/sf_dynamic_engine.h:
* src/dynamic-plugins/sf_dynamic_plugins.c:
* src/dynamic-plugins/sf_dynamic_preprocessor.h:
* src/dynamic-plugins/sp_dynamic.c:
* src/dynamic-plugins/sp_preprocopt.c:
* src/dynamic-plugins/sf_engine/bmh.c:
* src/dynamic-plugins/sf_engine/sf_snort_detection_engine.c:
* src/dynamic-plugins/sf_engine/sf_snort_plugin_loop.c:
* src/dynamic-plugins/sf_preproc_example/sf_dynamic_preproc_lib.c:
* src/dynamic-preprocessors/dns/spp_dns.c:
* src/dynamic-preprocessors/ftptelnet/ftpp_si.c:
* src/dynamic-preprocessors/ftptelnet/ftpp_ui_config.c:
* src/dynamic-preprocessors/ftptelnet/hi_util_kmap.c:
* src/dynamic-preprocessors/ftptelnet/pp_ftp.c:
* src/dynamic-preprocessors/ftptelnet/snort_ftptelnet.c:
* src/dynamic-preprocessors/ftptelnet/spp_ftptelnet.c:
* src/dynamic-preprocessors/smtp/smtp_config.c:
* src/dynamic-preprocessors/smtp/smtp_util.c:
* src/dynamic-preprocessors/smtp/snort_smtp.c:
* src/dynamic-preprocessors/ssh/spp_ssh.c:
* src/output-plugins/spo_alert_fast.c:
* src/output-plugins/spo_database.c:
* src/output-plugins/spo_log_ascii.c:
* src/output-plugins/spo_log_tcpdump.c:
* src/output-plugins/spo_unified.c:
* src/preprocessors/perf-base.c:
* src/preprocessors/perf-flow.c:
* src/preprocessors/perf.c:
* src/preprocessors/portscan.c:
* src/preprocessors/snort_httpinspect.c:
* src/preprocessors/snort_stream4_udp.c:
* src/preprocessors/spp_perfmonitor.c:
* src/preprocessors/spp_sfportscan.c:
* src/preprocessors/spp_stream5.c:
* src/preprocessors/spp_stream4.c:
* src/preprocessors/str_search.c:
* src/preprocessors/stream.h:
* src/preprocessors/HttpInspect/client/hi_client.c:
* src/preprocessors/HttpInspect/event_output/hi_eo_log.c:
* src/preprocessors/HttpInspect/user_interface/hi_ui_iis_unicode_map.c:
* src/preprocessors/HttpInspect/utils/hi_util_kmap.c:
* src/preprocessors/Stream5/snort_stream5_tcp.c:
* src/preprocessors/flow/flow.h:
* src/preprocessors/flow/int-snort/flow_packet.h:
* src/preprocessors/flow/portscan/flowps.c:
* src/preprocessors/flow/portscan/flowps_snort.c:
* src/sfutil/acsmx.c:
* src/sfutil/acsmx2.c:
* src/sfutil/bitop_funcs.h:
* src/sfutil/getopt_long.c:
* src/sfutil/ipobj.c:
* src/sfutil/sfghash.c:
* src/sfutil/sflsq.c:
* src/sfutil/sfsnprintfappend.c:
* src/sfutil/sfxhash.c:
* src/win32/WIN32-Code/misc.c:
* src/win32/WIN32-Code/syslog.c:
* src/win32/WIN32-Code/win32_service.c:
Code cleanup, change malloc/calloc to SnortAlloc, use safer functions
SnortSnprintf, SnortStrncpy, etc. Check pointers before use.
* src/win32/WIN32-Code/win32_service.c:
Fix issue with service initialization and parameter validation.
Thanks Hideki Saito for pointing out the problem.
* src/dynamic-preprocessors/dcerpc/dcerpc.c:
* src/dynamic-preprocessors/dcerpc/dcerpc.h:
* src/dynamic-preprocessors/dcerpc/dcerpc_config.c:
* src/dynamic-preprocessors/dcerpc/dcerpc_util.c:
* src/dynamic-preprocessors/dcerpc/dcerpc_util.h:
* src/dynamic-preprocessors/dcerpc/smb_andx_decode.c:
* src/dynamic-preprocessors/dcerpc/snort_dcerpc.c:
* src/dynamic-preprocessors/dcerpc/spp_dcerpc.c:
Code cleanup, update calculating for valid length to handle
alternate padding. Update to use safer functions.
* src/preprocessors/portscan.c:
* src/preprocessors/portscan.h:
* src/preprocessors/spp_stream4.c:
* src/preprocessors/spp_stream5.c:
* src/preprocessors/stream_api.h:
* src/preprocessors/Stream5/snort_stream5_udp.c:
Allow portscan to work with Stream5 UDP session tracking (because
it replaces flow preprocessor). Added API function to get direction
of packet (not supported in Stream4).
* src/preprocessors/spp_stream5.c:
* src/preprocessors/Stream5/snort_stream5_icmp.c:
* src/preprocessors/Stream5/snort_stream5_icmp.h:
* src/preprocessors/Stream5/snort_stream5_session.c:
* src/preprocessors/Stream5/snort_stream5_session.h:
* src/preprocessors/Stream5/snort_stream5_tcp.c:
* src/preprocessors/Stream5/snort_stream5_udp.c:
* src/preprocessors/Stream5/stream5_common.h:
Stream5 config parsing improvements. Check option parameters for
reasonable values (prevent huge memcaps, etc).
2007-01-29 Steven Sturges <[email protected]>
* src/debug.c:
* configure.in:
Handle platforms that don't support vswprintf and vwprintf. Thanks
Nikns Siankin for pointing that out for OpenBSD.
* src/profiler.h:
* src/profiler.c:
* src/rules.h:
Use 64 bit values to store profiling counters.
* doc/snort_manual.tex:
* doc/snort_manual.pdf:
Added a table for content modifiers and links to their respective
sections. Removed old preprocessor sections and moved ASN.1 from
preprocessor to detection plugins section. Added section for Stream5.
* src/win32/WIN32-Prj/snort.dsp:
Always use DYNAMIC_PLUGIN.
* src/win32/WIN32-Includes/config.h:
* src/win32/WIN32-Includes/LibnetNT.h:
Code cleanup.
* src/detection-plugins/sp_flowbits.c:
* src/preprocessors/spp_stream5.c:
Fix issue with flowbits for UDP streams.
* src/detection-plugins/sp_flowbits.c:
Add check when stream4 or stream5 are not enabled to still support
flowbits. Will be removed when Flow preprocessor and Stream4 are
deprecated. Thanks to Nathan Ching for pointing out the issue.
* src/snort.c:
Fix to allow dynamic rules to load correctly.
* doc/README.stream4:
* doc/README.stream5:
Cleanup.
2007-01-18 Steven Sturges <[email protected]>
* etc/generators:
* src/generators.h:
Remove generator IDs that are no longer used.
* doc/README.tag
* doc/snort_manual.tex:
* doc/snort_manual.pdf:
Added info on snort.conf config option tagged_packet_limit and added
README.tag info file for the tag option in rules.
* doc/README.http_inspect:
* doc/snort_manual.tex:
* doc/snort_manual.pdf:
Emphasized in httpinspect documentation that a flow_depth between
1 and 1460 will only inspect at most that many bytes of a server's
response, stream reassembled or not and that rules written to inspect
more than flow_depth bytes will be ineffective. Thanks to Christian
Seifert for pointing this out.
2007-01-17 Steven Sturges <[email protected]>
* configure.in:
* snort.8:
* RELEASE.NOTES:
* etc/snort.conf:
* rpm/snort.spec:
* src/win32/WIN32-Includes/config.h:
* src/win32/WIN32-Prj/snort_installer.nsi:
* doc/snort_manual.tex:
* doc/snort_manual.pdf:
Update for 2.7.0 Beta
* src/dynamic-plugins/sf_engine/Makefile.am:
* src/win32/Makefile.am:
* src/win32/WIN32-Code/getopt.c:
* src/win32/WIN32-Code/getopt_long.c:
* src/win32/WIN32-Includes/config.h:
* src/win32/WIN32-Includes/getopt.h:
* src/win32/WIN32-Includes/getopt1.h:
* src/win32/WIN32-Includes/stdint.h:
* src/win32/WIN32-Prj/.cvsignore:
* src/win32/WIN32-Prj/sf_engine.dsp:
* src/win32/WIN32-Prj/snort.dsp:
* src/win32/WIN32-Prj/snort.dsw:
Update Win32 build enviornment for 2.7.0.
* doc/README.stream5:
* doc/README.ftptelnet:
Fix a few typos and add better descriptions for alerts.
* etc/gen-msg.map:
* etc/generators.h:
Add Stream5 alert.
* etc/snort.conf:
* src/preprocessors/spp_frag2.c (removed):
* src/preprocessors/spp_frag2.h (removed):
* src/preprocessors/Makefile.am:
* src/plugbase.c:
* src/plugbase.h:
Remove deprecated Frag2.
* src/sfutil/mwm.c (removed):
* src/sfutil/mwm.h (removed):
Remove deprecated mwm pattern matcher.
* src/detection-plugins/sp_ipoption_check.c:
* src/decode.h:
* src/decode.c:
* src/log.c:
Add handling of IP Option ESEC (Extended Security).
* src/debug.h:
* src/bounds.h:
* src/fpcreate.h:
* src/fpdetect.h:
* src/tag.c:
* src/detection-plugins/sp_respond2.c:
* src/dynamic-preprocessors/ftptelnet/ftpp_include.h:
* src/preprocessors/portscan.h:
* src/preprocessors/snort_stream4_udp.c:
* src/preprocessors/spp_stream4.c:
* src/preprocessors/HttpInspect/include/hi_include.h:
* src/preprocessors/flow/common_defs.h:
* src/sfutil/bitop_funcs.h:
Move definition of INLINE for inline functions to a common place.
* src/debug.c:
* src/debug.h:
* src/dynamic-plugins/sf_dynamic_preprocessor.h:
Add DebugWideMessageFunc for use with Wide Character sets, however
it does not write to syslog.
* src/debug.c:
* src/decode.c:
* src/detect.c:
* src/detect.h:
* src/fpcreate.c:
* src/fpdetect.c:
* src/log.c:
* src/mstring.c:
* src/parser.c:
* src/pcrm.c:
* src/plugbase.c:
* src/profiler.h:
* src/sf_sdlist.c:
* src/sfthreshold.c:
* src/sfthreshold.h:
* src/signature.c:
* src/snort.c:
* src/snort.h:
* src/tag.c:
* src/util.c:
* src/util.h:
* src/detection-plugins/sp_ip_fragbits.c:
* src/detection-plugins/sp_pcre.c:
* src/detection-plugins/sp_rpc_check.c:
* src/dynamic-plugins/sf_dynamic_plugins.c:
* src/dynamic-plugins/sp_preprocopt.c:
* src/dynamic-plugins/sf_engine/sf_snort_detection_engine.c:
* src/dynamic-plugins/sf_engine/sf_snort_packet.h:
* src/dynamic-plugins/sf_engine/sf_snort_plugin_api.h:
* src/dynamic-plugins/sf_engine/sf_snort_plugin_loop.c:
* src/dynamic-preprocessors/dcerpc/dcerpc.c:
* src/dynamic-preprocessors/dcerpc/dcerpc_util.c:
* src/dynamic-preprocessors/dcerpc/smb_andx_decode.c:
* src/dynamic-preprocessors/ftptelnet/ftpp_si.c:
* src/dynamic-preprocessors/ftptelnet/pp_ftp.c:
* src/dynamic-preprocessors/ftptelnet/snort_ftptelnet.c:
* src/dynamic-preprocessors/smtp/smtp_confic.c:
* src/dynamic-preprocessors/ssh/spp_ssh.c:
* src/dynamic-preprocessors/ssh/spp_ssh.h:
* src/preprocessors/spp_arpspoof.c:
* src/preprocessors/spp_flow.c:
* src/preprocessors/spp_frag3.c:
* src/preprocessors/spp_stream4.c:
* src/preprocessors/str_search.c:
* src/preprocessors/stream_ignore.c:
* src/sfutil/acsmx.c:
* src/sfutil/acsmx.h:
* src/sfutil/acsmx2.c:
* src/sfutil/acsmx2.h:
* src/sfutil/asn1.c:
* src/sfutil/asn1.h:
* src/sfutil/bnfa_search.c:
* src/sfutil/bnfa_search.h:
* src/sfutil/ipobj.c:
* src/sfutil/mpse.c:
* src/sfutil/mpse.h:
* src/sfutil/mwm.c:
* src/sfutil/mwm.h:
* src/sfutil/sfeventq.c:
* src/sfutil/sfghash.c:
* src/sfutil/sfghash.h: