QID 730616

Date Published: 2022-09-27

QID 730616: Sophos Firewall Remote Code Execution (RCE) Vulnerability (sophos-sa-20220923-sfos-rce)

A code injection vulnerability allowing remote code execution was discovered in the User Portal and Webadmin of Sophos Firewall.

Affected Versions:
Sophos Firewall v19.0 MR1 (19.0.1) and older

QID Detection Logic (Unauthenticated):
This QID checks for vulnerable version of Sophos Firewall by extracting the version from themes/lite1/css/common_min.css

Note: Sophos has released hotfix for older versions of firewall. It is not possible to check the hotfix version remotely, hence the detection is kept as potential check.

Successful exploitation of the vulnerability may allow Remote Code Execution.

CVSS V3 rated as Critical - 9.8 severity.

CVSS V2 rated as High - 7.5 severity.

Solution

Vendor has released v18.5 MR5 (18.5.5), v19.0 MR2 (19.0.2), and v19.5 GA as fix, for more info please refer to sophos-sa-20220923-sfos-rce

Workaround:
Customers can protect themselves from external attackers by ensuring their User Portal, and Webadmin are not exposed to WAN.
Disable WAN access to the User Portal and Webadmin by following device access best practices and instead use VPN and/or Sophos Central (preferred) for remote access and management.

Vendor References

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

CVEs related to QID 730616

CVE-2022-3236 |

Software Advisories

Advisory ID	Software	Component	Link
sophos-sa-20220923-sfos-rce			www.sophos.com/en-us/security-advisories/sophos-sa-20220923-sfos-rce

By selecting these links, you may be leaving CVEreport webspace. We have provided these links to other websites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other websites that are more appropriate for your purpose. CVEreport does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, CVEreport does not endorse any commercial products that may be mentioned on these sites. Please address comments about any linked pages to [email protected].