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Apache Tomcat - Remote Code Execution (CVE-2017-12617)

Severity
CVSSv3 Score
8.1
Exploitable with Sniper
Yes
Vulnerability description

Apache Tomcat is affected by a Remote Code Execution vulnerability. The root cause of this vulnerability consists in using a bad servlet context configuration with readonly=false and the PUT method allowed. Therefore, an unauthenticated remote attacker can use PUT method to upload JSP files on the server and execute them.

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 to the latest version or to a version higher than: 9.0.0, 8.5.22, 8.0.46, 7.0.81.

Detectable with
Network Scanner
Vuln date
Oct 2017
Published at
Updated at
Software Type
Web server
Vendor
Apache
Product
Tomcat
Codename
Not available