By Marcos Colón

March 9, 2017

Organizations using Apache Struts on their servers need to upgrade to the latest version as soon as possible, if not, they’re in serious danger.

According to researchers at Qualys, a recently patched vulnerability in the open-source web development framework for Java web applications is being leveraged by attackers to fully compromise systems.

Impacting the framework’s multipart parser, the vulnerability allows for a cyber criminal to “remotely and without need of any credentials take complete control of the system,” according to a blog post by Amol Sarwate, director of Vulnerability Labs at Qualys.

Although the flaw was addressed on March 6, researchers from Cisco Systems have shared with CSO Online that real-world attacks leveraging the vulnerability took place hours after it was patched.

Used to build corporate websites in the education, government, and financial services sectors, companies that use Apache Struts on their servers should upgrade to versions 2.3.32 or 2.5.10.1 as soon as possible.