Description
The REST Plugin in Apache Struts 2.1.x, 2.3.7 through 2.3.33 and 2.5 through 2.5.12 is using an outdated XStream library which is vulnerable and allow perform a DoS attack using malicious request with specially crafted XML payload.
Remediation
References
http://www.brocade.com/content/dam/common/documents/content-types/security-bulletin/brocade-security-advisory-2017-429.htm
http://www.oracle.com/technetwork/security-advisory/alert-cve-2017-9805-3889403.html
http://www.securityfocus.com/bid/100611
http://www.securitytracker.com/id/1039262
https://security.netapp.com/advisory/ntap-20180629-0001/
https://struts.apache.org/docs/s2-051.html
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170907-struts2
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