CVE-2018-17431
published 2019-01-30CVE-2018-17431: Web Console in Comodo UTM Firewall before 2.7.0 allows remote attackers to execute arbitrary code without authentication via a crafted URL.
PriorityP193critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
ITWEXPLOITVulnCheck KEVInitial access
Exploited in the wild
EPSS
83.91%
99.7th percentile
Web Console in Comodo UTM Firewall before 2.7.0 allows remote attackers to execute arbitrary code without authentication via a crafted URL.
Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| comodo | unified_threat_management_firewall | < 2.7.0 | 2.7.0 |
Detection & IOCsextracted from sources · hover to see the quote
url/manage/webshell/u?s=5&w=218&h=15&k=%73%65%72%76%69%63%65%0a%73%73%68%0a%64%69%73%61%62%6c%65%0a&l=62&_=5621298674064↗
- →Detect exploitation attempts by monitoring HTTP GET requests to the path /manage/webshell/u with query parameters 's', 'w', 'h', 'k', 'l', and '_'. The 'k' parameter carries URL-encoded shell commands. ↗
- →A successful exploitation response contains the string 'Configuration has been altered' in the HTTP response body. Alert on this string appearing in responses to /manage/webshell/u requests. ↗
- →The exploit is unauthenticated and requires no session cookie or prior login. Any unauthenticated request to /manage/webshell/u should be treated as suspicious. ↗
- ·The numeric parameters 's', 'w', 'h', 'l', and '_' in the exploit URL are randomized per request, so detection rules should not rely on their specific values and should instead focus on the path /manage/webshell/u and the presence of the 'k' parameter. ↗
- ·The vulnerability affects Comodo UTM Firewall releases before 2.7.0 and Central Manager releases before 1.5.0. Detections should be scoped to hosts running these product versions. ↗
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
vulncheck9.8CRITICAL
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GHSA
GHSA-7479-2r5v-v4vj: Web Console in Comodo UTM Firewall before 2
ghsa_unreviewed·2022-05-13
CVE-2018-17431 [CRITICAL] CWE-287 GHSA-7479-2r5v-v4vj: Web Console in Comodo UTM Firewall before 2
Web Console in Comodo UTM Firewall before 2.7.0 allows remote attackers to execute arbitrary code without authentication via a crafted URL.
VulnCheck
comodo unified_threat_management_firewall Improper Authentication
vulncheck·2018·CVSS 9.8
CVE-2018-17431 [CRITICAL] comodo unified_threat_management_firewall Improper Authentication
comodo unified_threat_management_firewall Improper Authentication
Web Console in Comodo UTM Firewall before 2.7.0 allows remote attackers to execute arbitrary code without authentication via a crafted URL.
Affected: comodo unified_threat_management_firewall
Required Action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Exploitation References: https://veriti.ai/blog/vulnerable-villain-when-hackers-get-hacked/; https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-12-19&host_type=src&vulnerability=cve-2018-17431; https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2024-12-20&host_type=src&vulnerability=cve-2018-17431; https://dashboard.shado
No detection rules found.
Exploit-DB
Comodo Unified Threat Management Web Console 2.7.0 - Remote Code Execution
exploitdb·2020-09-22·CVSS 9.8
CVE-2018-17431 [CRITICAL] Comodo Unified Threat Management Web Console 2.7.0 - Remote Code Execution
Comodo Unified Threat Management Web Console 2.7.0 - Remote Code Execution
---
# Exploit Title: Comodo Unified Threat Management Web Console 2.7.0 - Remote Code Execution
# Date: 2018-08-15
# Exploit Author: Milad Fadavvi
# Author's LinkedIn: https://www.linkedin.com/in/fadavvi/
# Vendor Homepage: https://www.comodo.com/
# Version: Releases before 2.7.0 & 1.5.0
# Tested on: Windows=Firefox/chrome - Kali=firefox
# PoC & other infos: https://github.com/Fadavvi/CVE-2018-17431-PoC
# CVE : CVE-2018-17431
# CVE-detailes: https://nvd.nist.gov/vuln/detail/CVE-2018-17431
# CVSS 3 score: 9.8
import requests
def RndInt(Lenght):
from random import choice
from string import digits
RandonInt = ''.join([choice(digits) for n in range(Lenght)])
return str(RandonInt)
if __name__ == "__main__":
IP = i
Nuclei
Comodo Unified Threat Management Web Console - Remote Code Execution
nuclei·CVSS 9.8
CVE-2018-17431 [CRITICAL] Comodo Unified Threat Management Web Console - Remote Code Execution
Comodo Unified Threat Management Web Console - Remote Code Execution
Comodo Firewall & Central Manager (UTM) All Release before 2.7.0 & 1.5.0 are susceptible to a web shell based remote code execution vulnerability.
Template:
id: CVE-2018-17431
info:
name: Comodo Unified Threat Management Web Console - Remote Code Execution
author: dwisiswant0
severity: critical
description: Comodo Firewall & Central Manager (UTM) All Release before 2.7.0 & 1.5.0 are susceptible to a web shell based remote code execution vulnerability.
impact: |
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code on the target system.
remediation: |
Apply the latest security patches or updates provided by Comodo to fix this vulnerability.
reference:
- https://www.exploit-db.c
Greynoiseio
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blogs_greynoiseio
NoiseLetter March 2025
CVE Disclosure Early Warning Get an early warning when traffic spikes indicate a high likelihood of new disclosures
Compromised Asset Detection Find out immediately if an asset communicates with a malicious IP address
Vulnerability Prioritization Get real-time insight into active exploitation trends to better understand risk and severity
SOC Efficiency Filter out noisy, low priority and false-positive alerts from mass internet scanners
Incident Investigation Add context to incidents to speed the determinations of scope and timelines
Threat Hunting Quickly identify anomalous behavior and enrich your threat hunting campaigns
Why GreyNoise
CVE Disclosure Early Warning Get an early warning when traffic spikes indicate a high likelihood of new disclosures
Compromised Asset Detection Fin
http://packetstormsecurity.com/files/159246/Comodo-Unified-Threat-Management-Web-Console-2.7.0-Remote-Code-Execution.htmlhttps://drive.google.com/file/d/0BzFJhNQNHcoTbndsUmNjVWNGYWNJaWxYcWNyS2ZDajluTDFz/viewhttps://github.com/Fadavvi/CVE-2018-17431-PoC#confirmation-than-bug-exist-2018-09-25-ticket-id-xwr-503-79437http://packetstormsecurity.com/files/159246/Comodo-Unified-Threat-Management-Web-Console-2.7.0-Remote-Code-Execution.htmlhttps://drive.google.com/file/d/0BzFJhNQNHcoTbndsUmNjVWNGYWNJaWxYcWNyS2ZDajluTDFz/viewhttps://github.com/Fadavvi/CVE-2018-17431-PoC#confirmation-than-bug-exist-2018-09-25-ticket-id-xwr-503-79437
2019-01-30
Published
Exploited in the wild