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Sophos Web Appliance - Remote Code Execution (CVE-2023-1671)

Severity
CVSSv3 Score
9.8
Vulnerability description

Sophos Web Appliance is vulnerable to CVE-2023-1671, a Remote Code Execution in the warn-proceed handler. The root cause of this vulnerability is improper sanitization of user-provided input. This vulnerability allows a remote unauthenticated attacker to inject commands through the data field by escaping commands with a single quote.

Risk description

The risk exists that a remote unauthenticated attacker can fully compromise the server in order to steal confidential information, install ransomware, or pivot to the internal network.

Exploit capabilities

Sniper can gain unauthenticated Remote Code Execution on the target system and extract multiple artefacts as evidence.

Recommendation

Update the Sophos Web Appliance to a version greater or equal to 4.3.10.4.

Codename
Not available
Detectable with
Network Scanner
Exploitable with Sniper
Yes
Vuln date
Apr 2023
Published at
Updated at
Software Type
Web Proxy
Vendor
Sophos
Product
Sophos Web Appliance (SWA)