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TITLE:
Qpopper poppassd Insecure Trace File Creation Vulnerability

SECUNIA ADVISORY ID:
SA16935

VERIFY ADVISORY:
https://secunia.com/advisories/16935/

CRITICAL:
Less critical

IMPACT:
Privilege escalation

WHERE:
Local system

SOFTWARE:
Qpopper 4.x
https://secunia.com/product/1264/

DESCRIPTION:
kcope has discovered a vulnerability in Qpopper, 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 trace files being created without
dropping root privileges, and with insecure file permissions by
"poppassd", which is suid root. This can be exploited to create or
modify arbitrary files with the privileges of the root user.

The vulnerability has been confirmed in version 4.0.8. Other versions
may also be affected.

SOLUTION:
Grant only trusted users access to affected systems.

PROVIDED AND/OR DISCOVERED BY:
kcope

ORIGINAL ADVISORY:
https://lists.grok.org.uk/pipermail/full-disclosure/2005-September/037377.html

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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:
https://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
https://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.

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