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TITLE:
Kerberos Applications GSS-API FTP Daemon Effective Group ID
Privileges Security Issue

SECUNIA ADVISORY ID:
SA45145

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/45145/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=45145

RELEASE DATE:
2011-07-06

DISCUSS ADVISORY:
http://secunia.com/advisories/45145/#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/45145/

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=45145

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 Kerberos Applications, which
can be exploited by malicious users to bypass certain security
restrictions.

The security issue is caused due to the FTP daemon failing to drop
its effective group identifier (EGID) privileges. This can be
exploited to gain access to files and directories owned by the same
group as the EGID of the daemon process.

The security issue is reported in version 1.0.1 and prior.

SOLUTION:
Apply patch (please see the vendor's advisory for details).

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Tim Zingelman.

ORIGINAL ADVISORY:
http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2011-005.txt

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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Definitions: (Criticality, Where etc.)
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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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