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Apache Struts - Remote Code Execution (CVE-2017-12611)

Severity
CVSSv3 Score
9.8
Exploitable with Sniper
Yes
Vulnerability description

Apache Struts is affected by a Remote Code Execution vulnerability, located in the Freemaker template. The target server is running a vulnerable instance of Apache Struts Framework, a version that is lower than 2.5.10.1. The root cause of this vulnerability consists in insufficient validation of user input that is parsed by the Freemaker template. This allows a malicious unauthenticated attacker to execute arbitrary code on the server.

Exploit capabilities

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

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.

Recommendation

Upgrade the Apache Struts Framework to the latest version or to a version higher than 2.5.10.1.

Detectable with
Network Scanner
Vuln date
Sep 2017
Published at
Updated at
Software Type
Web framework
Vendor
Apache
Product
Struts
Codename
Not available