CVE-2016-0762
MEDIUM severity · CVSS 5.9 · CWE-203
5.9CVSS MEDIUM
Summary
The Realm implementations in Apache Tomcat versions 9.0.0.M1 to 9.0.0.M9, 8.5.0 to 8.5.4, 8.0.0.RC1 to 8.0.36, 7.0.0 to 7.0.70 and 6.0.0 to 6.0.45 did not process the supplied password if the supplied user name did not exist. This made a timing attack possible to determine valid user names. Note that the default configuration includes the LockOutRealm which makes exploitation of this vulnerability harder.
Impact & exploitability
Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactNone
Availability impactNone
Exploit probability (EPSS)8%
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://rhn.redhat.com/errata/RHSA-2017-0457.htmlAdvisory
- http://www.debian.org/security/2016/dsa-3720Advisory
- http://www.securityfocus.com/bid/93939
- http://www.securitytracker.com/id/1037144
- https://access.redhat.com/errata/RHSA-2017:0455Advisory
- https://access.redhat.com/errata/RHSA-2017:0456Advisory
- https://access.redhat.com/errata/RHSA-2017:2247Advisory
- https://lists.apache.org/thread.html/1872f96bad43647832bdd84a408794cd06d9cbb557af63085ca10009%40%3Cannounce.tomcat.apache.org%3E