|
TITLE:
Bugzilla "syncshadowdb" Script Insecure Temporary File Creation
SECUNIA ADVISORY ID:
SA18218
VERIFY ADVISORY:
http://secunia.com/advisories/18218/
CRITICAL:
Less critical
IMPACT:
Privilege escalation
WHERE:
Local system
SOFTWARE:
Bugzilla 2.x
http://secunia.com/product/396/
DESCRIPTION:
Javier Fernandez-Sanguino Pena has reported a vulnerability in
Bugzilla, which can be exploited by malicious, local users to perform
certain actions on a vulnerable system with escalated privileges.
The vulnerability is caused due to the "tmpsyncshadow" temporary file
being created insecurely by the "syncshadowdb" script in the temporary
directory. This can be exploited via symlink attacks to overwrite
arbitrary files with the privileges of the user running the affected
script.
Successful exploitation requires that the malicious user is able to
write to the temporary directory.
The vulnerability has been reported version 2.16.7 and also affects
version 2.16.10. Other versions may also be affected.
SOLUTION:
The vendor do not recommend the use of version 2.16.10 for new
Bugzilla installations.
The affected script is not present in version 2.20.
PROVIDED AND/OR DISCOVERED BY:
Javier Fernandez-Sanguino Pena
ORIGINAL ADVISORY:
Debian:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=329387
----------------------------------------------------------------------
About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.
Subscribe:
http://secunia.com/secunia_security_advisories/
Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/
Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.
|
