All vulnerabilities
CVE-2023-1671

Sophos Web Appliance Command Injection Vulnerability

Sophos Web Appliance
Open in ThreatlineRecord JSON
CVSS
9.8Critical
ExploitationExploited in the wildAdded to KEV 16 Nov 2023CISA KEV
Exploit odds (EPSS)>99.9%Chance of exploitation activity in the next 30 days, higher than 99.9% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in4.3.10.4Fixed versionCVE List
Federal deadline7 Dec 2023Remediation due date for US federal agenciesCISA KEV
CISA required actionApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. CISA KEV

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Timeline

  1. 4 Apr 2023, 00:00 UTCPublishedCVE List
  2. 25 Apr 2023Exploit code publicExploit-DB
  3. 16 Nov 2023Added to CISA KEVCISA KEV

Public exploit code and templates 2

  • Webapps exploitSophos Web Appliance 4.3.10.4 - Pre-auth command injection 25 Apr 2023Exploit-DB
  • Scanner templateSophos Web Appliance - Remote Code ExecutionNuclei

Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.

Description

Sophos Web Appliance contains a command injection vulnerability in the warn-proceed handler that allows for remote code execution.

Text from CVE List

Affected versions 1

  • Sophos Web Applianceaffected: unspecified before 4.3.10.4CVE List

References 3