CVE-2017-5656

Description

Apache CXF's STSClient before 3.1.11 and 3.0.13 uses a flawed way of caching tokens that are associated with delegation tokens, which means that an attacker could craft a token which would return an identifer corresponding to a cached token for another user.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 3.80% Top 15%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory apache.org
Affected: Apache Software Foundation Apache CXF
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/errata/RHSA-2017:1832 vendor advisory issue tracking
http://www.securitytracker.com/id/1038282 third party advisory vdb entry
http://cxf.apache.org/security-advisories.data/CVE-2017-5656.txt.asc?version=1&modificationDate=1492515113282&api=v2 patch vendor advisory
http://www.securityfocus.com/bid/97971 third party advisory vdb entry
https://access.redhat.com/errata/RHSA-2018:1694 vendor advisory issue tracking
https://lists.apache.org/thread.html/rc774278135816e7afc943dc9fc78eb0764f2c84a2b96470a0187315c%40%3Ccommits.cxf.apache.org%3E mailing list
https://lists.apache.org/thread.html/r36e44ffc1a9b365327df62cdfaabe85b9a5637de102cea07d79b2dbf%40%3Ccommits.cxf.apache.org%3E mailing list
https://lists.apache.org/thread.html/rff42cfa5e7d75b7c1af0e37589140a8f1999e578a75738740b244bd4%40%3Ccommits.cxf.apache.org%3E mailing list
https://lists.apache.org/thread.html/rd49aabd984ed540c8ff7916d4d79405f3fa311d2fdbcf9ed307839a6%40%3Ccommits.cxf.apache.org%3E mailing list
https://lists.apache.org/thread.html/rec7160382badd3ef4ad017a22f64a266c7188b9ba71394f0d321e2d4%40%3Ccommits.cxf.apache.org%3E mailing list
https://lists.apache.org/thread.html/rfb87e0bf3995e7d560afeed750fac9329ff5f1ad49da365129b7f89e%40%3Ccommits.cxf.apache.org%3E mailing list

Frequently Asked Questions

What is the severity of CVE-2017-5656?
CVE-2017-5656 has been scored as a high severity vulnerability.
How to fix CVE-2017-5656?
To fix CVE-2017-5656, 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-2017-5656 being actively exploited in the wild?
It is possible that CVE-2017-5656 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~4% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-5656?
CVE-2017-5656 affects Apache Software Foundation Apache CXF.
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