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TITLE:
Samba LSA RPC "take ownership" Privilege Security Bypass Security
Issue

SECUNIA ADVISORY ID:
SA48976

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/48976/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=48976

RELEASE DATE:
2012-05-01

DISCUSS ADVISORY:
http://secunia.com/advisories/48976/#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/48976/

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=48976

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

The security issue is caused due to improper application of security
checks in the CreateAccount, OpenAccount, AddAccountRights, and
RemoveAccountRights remote procedure calls (RPC) within the Local
Security Authoriy (LSA). This can be exploited to gain "take
ownership" privileges and e.g. change the ownership of arbitrary
files and directories on the smdb file server.

The security issue is reported in versions 3.4.x through 3.6.4.

SOLUTION:
Apply patch or update to version 3.4.17, 3.5.15, and 3.6.5.

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

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Ivano Cristofolini.

ORIGINAL ADVISORY:
http://www.samba.org/samba/security/CVE-2012-2111

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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