A pre-auth command injection vulnerability in the warn-proceed handler of Sophos Web Appliance older than version 4.3.10.4 allows execution of arbitrary code.
CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.
A pre-auth command injection vulnerability in the warn-proceed handler of Sophos Web Appliance older than version 4.3.10.4 allows execution of arbitrary code.
Confirm exposure before applying a vendor-supported change.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Due date: 2023.12.07Confirm that Sophos Web Appliance and an affected version are present.
Combine exploitation signals with asset exposure and business criticality.
Follow the vendor advisory or supported update path and preserve rollback options.
Recheck the version, service health, access paths, and relevant logs.
