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

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.

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

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.

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

https://nvd.nist.gov/vuln/detail/CVE-2017-12611