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TITLE:
OpenPAM Service Name Privilege Escalation Security Issue

SECUNIA ADVISORY ID:
SA46756

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/46756/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=46756

RELEASE DATE:
2011-11-09

DISCUSS ADVISORY:
http://secunia.com/advisories/46756/#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/46756/

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=46756

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:
A security issue has been reported in OpenPAM, which can be exploited
by malicious, local users to gain escalated privileges.

The security issue is caused due to an input sanitisation error when
loading PAM services, which can be exploited to e.g. load malicious
libraries with root privileges via directory traversal attacks.

Note: Successful exploitation requires that an attacker can e.g. pass
a malicious server name to OpenPAM's "pam_start()" function (e.g. the
kcheckpass utility on FreeBSD).

The security issue is reported in OpenPAM Hydrangea. Other versions
may also be affected.

SOLUTION:
Restrict access to trusted users only.

PROVIDED AND/OR DISCOVERED BY:
Sebastian Krahmer

ORIGINAL ADVISORY:
http://c-skills.blogspot.com/2011/11/openpam-trickery.html

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.

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Please Note:
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Secunia NEVER sends attached files with advisories.
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