[SA19455] Samba Exposure of Machine Account Credentials

TITLE:
Samba Exposure of Machine Account Credentials

SECUNIA ADVISORY ID:
SA19455

VERIFY ADVISORY:
http://secunia.com/advisories/19455/

CRITICAL:
Less critical

IMPACT:
Exposure of sensitive information

WHERE:
Local system

SOFTWARE:
Samba 3.x
http://secunia.com/product/2999/

DESCRIPTION:
A security issue has been reported in Samba, which can be exploited
by malicious, local users to gain knowledge of sensitive
information.

The winbindd daemon saves the machine trust account credentials to
the world-readable winbind log files in clear text. This may expose
the credentials, which can be used to impersonate the server in a
domain and gain additional information.

Successful exploitation requires that log level is set to 5 or
above.

The security issue has been reported in versions 3.0.21 through
3.0.21c.

SOLUTION:
Update to version 3.0.22 or apply patch.

Patch for version 3.0.21[a-c]:
http://us1.samba.org/samba/ftp/patches/security/samba-3.0.21-CAN-2006-1059.patch

PROVIDED AND/OR DISCOVERED BY:
Reported by vendor.

ORIGINAL ADVISORY:
http://us1.samba.org/samba/security/CAN-2006-1059.html

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:
http://secunia.com/secunia_security_advisories/

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