CVE-2023-1671: Sophos Web Appliance Command Injection Vulnerability

CVE-2023-1671 · Severity: critical · CVSS 9.8 · Exploited in the wild · Published 2023-11-16

A pre-authentication command injection vulnerability exists in the warn-proceed handler of Sophos Web Appliance. An attacker can exploit this to execute arbitrary code on the appliance without prior authentication.

Technologies: Sophos Web Appliance. Vendors: Sophos.

Quick answers

Is CVE-2023-1671 exploited in the wild?
Yes. CVE-2023-1671 is known to be exploited in the wild, first recorded on 16 November 2023. Treat it as urgent.
How severe is CVE-2023-1671?
Critical severity, with a CVSS score of 9.8, published 16 November 2023.
Which products and versions are affected?
Sophos Web Appliance < 4.3.10.4.
Is there a fix for CVE-2023-1671?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2023-1671 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2023-1671?
Check whether you run Sophos Web Appliance. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Sophos Web Appliance < 4.3.10.4

Timeline

  • 2023-04-04: disclosed: NVD Published Date and Vendor Advisory date
  • 2023-04-04: advisory: Sophos security advisory SA-20230404-swa-rce published
  • 2023-04-26: other: Public exploit released on Packet Storm Security
  • 2023-11-16: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
  • 2023-11-16: exploited: Confirmed as exploited in the wild by CISA

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.