Zero-day vulnerability in Sophos Firewall

Code Injection
CVE-2022-3236

Vulnerability details

Advisory: SB2022092401 - Remote code execution in Sophos Firewall

Vulnerable component: Sophos Firewall

CVE-ID: CVE-2022-3236

CVSSv3 score: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Description:

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation in the User Portal and Webadmin interfaces of Sophos Firewall. A remote non-authenticated attacker can send a specially crafted request and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Note, the vulnerability is being actively exploited in the wild.

External links:

https://www.sophos.com/en-us/security-advisories/sophos-sa-20220923-sfos-rce


About zero-day vulnerabilities

Zero-day vulnerability is an undisclosed vulnerability in software that hackers can exploit to compromise computer programs, gain unauthorized access to sensitive data, penetrate networks, etc. We consider vulnerability a zero-day when there is no solution provided from software vendor and the vulnerability is being actively exploited by malicious actors.

Zero-day candidate is a potential zero-day vulnerability in software which might have been used in targeted attacks, however there is no evidence to support this suggestion.