CVE-2017-9805

Known Exploited Public Exploit

Description

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.

Category

8.1
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 94.39% Top 5%
KEV Since 
Vendor Advisory cisco.com Vendor Advisory apache.org Vendor Advisory apache.org Vendor Advisory apache.org
Affected: Apache Software Foundation Apache Struts
Published at:
Updated at:

References

Link Tags
http://www.oracle.com/technetwork/security-advisory/alert-cve-2017-9805-3889403.html third party advisory patch
https://struts.apache.org/docs/s2-052.html mitigation vendor advisory
http://www.securitytracker.com/id/1039263 vdb entry third party advisory broken link
http://www.securityfocus.com/bid/100609 vdb entry third party advisory broken link
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170907-struts2 third party advisory vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1488482 issue tracking vdb entry third party advisory
https://blogs.apache.org/foundation/entry/apache-struts-statement-on-equifax vendor advisory
https://www.exploit-db.com/exploits/42627/ exploit vdb entry third party advisory
https://lgtm.com/blog/apache_struts_CVE-2017-9805 broken link
https://cwiki.apache.org/confluence/display/WW/S2-052 mitigation vendor advisory
https://security.netapp.com/advisory/ntap-20170907-0001/ third party advisory
https://www.kb.cert.org/vuls/id/112992 third party advisory us government resource

Frequently Asked Questions

What is the severity of CVE-2017-9805?
CVE-2017-9805 has been scored as a high severity vulnerability.
How to fix CVE-2017-9805?
To fix CVE-2017-9805, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-9805 being actively exploited in the wild?
It is confirmed that CVE-2017-9805 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~94% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-9805?
CVE-2017-9805 affects Apache Software Foundation Apache Struts.
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