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CVE-2016-1240

Published: 16 September 2016

The Tomcat init script in the tomcat7 package before 7.0.56-3+deb8u4 and tomcat8 package before 8.0.14-1+deb8u3 on Debian jessie and the tomcat6 and libtomcat6-java packages before 6.0.35-1ubuntu3.8 on Ubuntu 12.04 LTS, the tomcat7 and libtomcat7-java packages before 7.0.52-1ubuntu0.7 on Ubuntu 14.04 LTS, and tomcat8 and libtomcat8-java packages before 8.0.32-1ubuntu1.2 on Ubuntu 16.04 LTS allows local users with access to the tomcat account to gain root privileges via a symlink attack on the Catalina log file, as demonstrated by /var/log/tomcat7/catalina.out.

From the Ubuntu Security Team

Dawid Golunski discovered that the Tomcat init script incorrectly handled creating log files. A remote attacker could possibly use this issue to obtain root privileges.

Priority

Medium

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package Release Status
tomcat6
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

disco Does not exist

eoan Does not exist

focal Does not exist

precise
Released (6.0.35-1ubuntu3.8)
trusty
Released (6.0.39-1ubuntu0.1)
upstream Needs triage

xenial
Released (6.0.45+dfsg-1ubuntu0.2)
yakkety Does not exist

zesty Does not exist

groovy Does not exist

tomcat7
Launchpad, Ubuntu, Debian
artful Ignored
(end of life)
bionic Not vulnerable
(7.0.72-2)
cosmic Not vulnerable
(7.0.72-2)
disco Does not exist

eoan Does not exist

focal Does not exist

precise Ignored
(end of life)
trusty
Released (7.0.52-1ubuntu0.7)
upstream Needs triage

xenial
Released (7.0.68-1ubuntu0.3)
yakkety Ignored
(end of life)
zesty Ignored
(end of life)
groovy Does not exist

tomcat8
Launchpad, Ubuntu, Debian
artful
Released (8.0.36-2ubuntu1)
bionic
Released (8.0.36-2ubuntu1)
cosmic
Released (8.0.36-2ubuntu1)
disco Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

precise Does not exist

trusty Does not exist

upstream Needs triage

xenial
Released (8.0.32-1ubuntu1.2)
yakkety
Released (8.0.36-2ubuntu1)
zesty
Released (8.0.36-2ubuntu1)

Severity score breakdown

Parameter Value
Base score 7.8
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H