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TITLE:
MasqMail Privilege Escalation Security Issues

SECUNIA ADVISORY ID:
SA45653

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/45653/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=45653

RELEASE DATE:
2011-08-17

DISCUSS ADVISORY:
http://secunia.com/advisories/45653/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/45653/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=45653

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
Some security issues have been reported in MasqMail, which can be
exploited by malicious, local users to perform certain actions with
escalated privileges.

1) Logic errors when changing the effective user and group IDs can
lead to the application running with higher privileges than intended,
which can be exploited to perform certain actions with escalated
privileges.

2) The application does not properly verify the return value when
changing privileges, which can be exploited to perform certain
actions with escalated privileges.

The security issues have been reported in version 0.2.29. Other
versions may also be affected.

SOLUTION:
Restrict access to trusted users only.

PROVIDED AND/OR DISCOVERED BY:
John Lightsey

ORIGINAL ADVISORY:
http://article.gmane.org/gmane.mail.masqmail/301

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/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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