Apache Struts Deserialization of Untrusted Data Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 03/11/2021. Patch affected systems as an emergency.
| Package | Affected versions | Patched versions |
|---|---|---|
| org.apache.struts:struts2-rest-plugin | ≥ 2.1.1, < 2.3.34≥ 2.5.0, < 2.5.13 | 2.3.342.5.13 |
| struts | ≥ 2.1.2, < 2.3.34≥ 2.5.0, < 2.5.13 | 2.3.342.5.13 |
| hosted collaboration solution | = 10.5(1)= 11.0(1)= 11.5(1)= 11.6(1) | |
| media experience engine | = 3.5= 3.5.2 |
The REST Plugin in Apache Struts 2.1.1 through 2.3.x before 2.3.34 and 2.5.x before 2.5.13 uses an XStreamHandler with an instance of XStream for deserialization without any type filtering, which can lead to Remote Code Execution when deserializing XML payloads.
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