CVE-2022-1040 on CISA KEV

An authentication bypass vulnerability in the User Portal and Webadmin allows a remote attacker to execute code in Sophos Firewall version v18.5 MR3 and older.

01What CISA says about this vulnerability

An authentication bypass vulnerability in the User Portal and Webadmin allows a remote attacker to execute code in Sophos Firewall version v18.5 MR3 and older.

02Required action — verbatim from CISA

Apply updates per vendor instructions.

03Notes & references

• www.sophos.com — https://www.sophos.com/en-us/security-advisories/sophos-sa-20220325-sfos-rce
• packetstormsecurity.com — http://packetstormsecurity.com/files/168046/Sophos-XG115w-Firewall-17.0.10-MR-10…
• www.exploit-db.com — https://www.exploit-db.com/exploits/51006

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

Vendor	Product	Versions
Sophos	Sophos Firewall	unspecified

06Detection

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection:

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