CVE-2017-9804

Description

In Apache Struts 2.3.7 through 2.3.33 and 2.5 through 2.5.12, if an application allows entering a URL in a form field and built-in URLValidator is used, it is possible to prepare a special URL which will be used to overload server process when performing validation of the URL. NOTE: this vulnerability exists because of an incomplete fix for S2-047 / CVE-2017-7672.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 12.07% Top 10%
Vendor Advisory cisco.com 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://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170907-struts2 third party advisory vendor advisory
http://www.securityfocus.com/bid/100612 third party advisory vdb entry
https://security.netapp.com/advisory/ntap-20180629-0001/
http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2017-003.txt third party advisory
http://www.securitytracker.com/id/1039261 third party advisory vdb entry
https://struts.apache.org/docs/s2-050.html patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-9804?
CVE-2017-9804 has been scored as a high severity vulnerability.
How to fix CVE-2017-9804?
To fix CVE-2017-9804, 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-2017-9804 being actively exploited in the wild?
It is possible that CVE-2017-9804 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~12% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-9804?
CVE-2017-9804 affects Apache Software Foundation Apache Struts.
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