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Oracle Releases Patches for Exploited Apache Struts Flaw

Oracle has released patches for many of its products to address several vulnerabilities in the Apache Struts 2 framework, including one that has been exploited in the wild for the past few weeks.

Oracle has released patches for many of its products to address several vulnerabilities in the Apache Struts 2 framework, including one that has been exploited in the wild for the past few weeks.

The actively exploited flaw is CVE-2017-9805, for which proof-of-concept (PoC) code was published within hours after a patch was released by Apache Struts developers on September 5. Several security firms reported seeing attacks shortly after.

The vulnerability, caused due to the way Struts deserializes untrusted data, allows remote code execution and it affects applications that use the REST plugin with the XStream handler for XML payloads.Oracle patches Apache Struts vulnerabilities

There is a long list of Oracle products that use Apache Struts and which are exposed to attacks due to flaws in the open-source development framework. The list includes Oracle’s MySQL Enterprise Monitor, Communications Policy Management, FLEXCUBE Private Banking, Retail XBRi, Siebel, WebLogic Server, and various Financial Services and Insurance products.

The vulnerability exploited in the wild is not the only Apache Struts issue addressed in Oracle products. The company’s latest updates also fix several other Struts vulnerabilities resolved recently by the Apache Software Foundation, including CVE-2017-7672, CVE-2017-9787, CVE-2017-9791, CVE-2017-9793, CVE-2017-9804 and CVE-2017-12611.

“Oracle strongly recommends that customers apply the fixes contained in this Security Alert as soon as possible,” Eric Maurice, director of security assurance at Oracle, wrote in a blog post.

US-CERT has also advised users to review Oracle’s security alert and apply the necessary updates.

Oracle highlighted the fact that the Apache Struts vulnerability exploited to breach the systems of U.S. credit reporting agency Equifax (CVE-2017-5638) was patched in its products several months ago with the release of the April 2017 Critical Patch Update (CPU).

The company has also advised customers to install the fixes released with the latest CPU, the one from July, and keep an eye out for the next round of patches, scheduled for October 17.

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Related: VMware Preparing Patches for “Catastrophic” Struts Flaw

Related: Oracle Improves Cloud Security Offering

Related: Researchers Remotely Hijack Oracle OAM 10g Sessions

Written By

Eduard Kovacs (@EduardKovacs) is a managing editor at SecurityWeek. He worked as a high school IT teacher for two years before starting a career in journalism as Softpedia’s security news reporter. Eduard holds a bachelor’s degree in industrial informatics and a master’s degree in computer techniques applied in electrical engineering.

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