Sophos patches three issues in the Sophos Web Security appliance, one of them rated as critical

Sophos addressed three vulnerabilities in Sophos Web Appliance, including a critical flaw that can lead to code execution.

Cybersecurity vendor Sophos addressed three vulnerabilities in Sophos Web Appliance, including a critical flaw, tracked as CVE-2023-1671 (CVSS score of 9.8), that can lead to code execution.

The CVE-2023-1671 flaw is a pre-auth command injection issue that resides in the warn-proceed handler, it affects appliances older than version 4.3.10.4.

The company also addressed a high-severity code execution issue, tracked as CVE-2022-4934. The issue is a post-auth command injection vulnerability that resides in the exception wizard, it can allow administrators to execute arbitrary code.

The vendor also fixed a medium-severity reflected cross-site scripting (XSS) vulnerability tracked as CVE-2020-36692. An attacker can exploit the vulnerability to execute JavaScript code in the victim’s browser.

The attacker can trigger the flaw by tricking the victim into submitting a malicious form on an attacker-controlled website while logged into Sophos Web Appliance.

All the above vulnerabilities were discovered and responsibly disclosed to Sophos by external security researchers via the Sophos bug bounty program.

Sophos Web Appliance will reach end-of-life (EoL) status on July 20, 2023. The company recommends customers replace the appliances with Sophos Firewall.

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(SecurityAffairs – hacking, Sophos)