Access Restriction Bypass Affecting tomcat7 package, versions <7.0.56-3+deb8u5


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.32% (71st percentile)

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  • Snyk IDSNYK-DEBIAN8-TOMCAT7-364122
  • published10 Aug 2017
  • disclosed10 Aug 2017

Introduced: 10 Aug 2017

CVE-2016-0762  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade Debian:8 tomcat7 to version 7.0.56-3+deb8u5 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tomcat7 package and not the tomcat7 package as distributed by Debian. See How to fix? for Debian:8 relevant fixed versions and status.

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.

References

CVSS Scores

version 3.1