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Apache Struts - Remote Code Execution CVE-2021-31805

Severity
CVSSv3 Score
9.8
Vulnerability description

Apache Struts is affected by a Remote Code Execution vulnerability, located in the Apache Struts 2 Framework. This vulnerability exists because of the incomplete fix issued for CVE-2020-17530. The root cause of this vulnerability consists in a forced double Object-Graph Navigation Language (OGNL) evaluation vulnerability on raw user-provided input, in tag attributes.

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

Upgrade the Apache Struts to 2.5.30 version or greater.

Codename
S2-062
Detectable with
Network Scanner
Scan engine
Sniper
Exploitable with Sniper
Yes
CVE Published
Apr 12, 2022
Detection added at
Software Type
Web framework
Vendor
Apache
Product
Struts