Apache Struts2 S2-053 RCE

Apache Struts is an open-source project of the Apache Software Foundation in the United States. An unintentional expression in a Freemarker tag( that exists in Apache Struts 2.0.0 through 2.3.33 and 2.5 through 2.5.10.1) instead of string literals can lead to a remote code execution attack.

Mitigation / Precaution

• We recommend you to upgrade Apache Struts to the latest version which will contain a more restricted Freemarker configuration.

Written by

Rejah Rehim

Co-founder, Director

Rejah brings more than 12 years of industry experience in Information Technology. He is a fervent security enthusiast and serves as a Project Leader at OWASP Foundation, and Commander (Hon.) at Kerala Police. He has authored two books titled “Effective Python Penetration Testing” and “Python Penetration Testing Cookbook” and is the creator of 9 Mozilla add-ons.