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Category:   Application (Web Server/CGI)  >   Apache Tomcat Vendors:   Apache Software Foundation
Apache Tomcat Unsafe chown Command in init Script Lets Local Users Obtain Root Privileges
SecurityTracker Alert ID:  1036845
SecurityTracker URL:  http://securitytracker.com/id/1036845
CVE Reference:   CVE-2016-1240   (Links to External Site)
Date:  Sep 20 2016
Impact:   Execution of arbitrary code via local system, Modification of system information, Root access via local system
Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Apache Tomcat. A local user can obtain root privileges on the target system.

A local user can exploit an unsafe 'chown' command in a Tomcat init script to conduct a symbolic link (symlink) attack on the 'catalina.log' file and potentially gain root privileges.

Some Linux distribution vendor packages are affected.

Dawid Golunski of LegalHackers reported this vulnerability.

Impact:   A local user can obtain root privileges on the target system.
Solution:   No solution was available at the time of this entry.

[Editor's note: Individual distribution vendors are issuing fixes for their affected distributions.]

Vendor URL:  tomcat.apache.org/ (Links to External Site)
Cause:   Access control error, State error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Sep 20 2016 (Ubuntu Issues Fix) Apache Tomcat Unsafe chown Command in init Script Lets Local Users Obtain Root Privileges
Ubuntu has issued a fix for Ubuntu Linux 12.04 LTS, 14.04 LTS, and 16.04 LTS.



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