Secunia Security Advisory - A vulnerability has been discovered in Sudo, which can be exploited by malicious, local users to perform certain actions with escalated privileges.
3ff5295157890d803225f7ea7b160b81d166f13537e0e376fd75f1a056aae64f
----------------------------------------------------------------------
Secure your corporate defenses and reduce complexity in handling vulnerability threats with the new Secunia Vulnerability Intelligence Manager (VIM).
Request a free trial:
http://secunia.com/products/corporate/vim/
----------------------------------------------------------------------
TITLE:
Sudo Group Changing Vulnerability
SECUNIA ADVISORY ID:
SA42886
VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/42886/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=42886
RELEASE DATE:
2011-01-13
DISCUSS ADVISORY:
http://secunia.com/advisories/42886/#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/42886/
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=42886
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 vulnerability has been discovered in Sudo, which can be exploited
by malicious, local users to perform certain actions with escalated
privileges.
The vulnerability is caused due to Sudo not properly restricting
changes of the group ID (GID), which can be exploited via the "sudo
-g" command to change into a restricted GID without having to enter a
password.
Note: Successful exploitation requires that Sudo is configured using
a certain syntax, e.g. "%sudo ALL=(ALL:ALL) ALL" is affected while
"%sudo ALL=(ALL) ALL" is not.
The vulnerability is confirmed in version 1.7.4-p4. Other versions
may also be affected.
SOLUTION:
Fixed in the Mercurial repository.
PROVIDED AND/OR DISCOVERED BY:
Reported in a Debian bug by Alexander Kurtz.
ORIGINAL ADVISORY:
Debian Bug #609641:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=609641
Sudo:
http://www.sudo.ws/repos/sudo/rev/fe8a94f96542
http://www.sudo.ws/repos/sudo/rev/07d1b0ce530e
OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/
DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/
EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/
EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/
EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/
----------------------------------------------------------------------
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.
----------------------------------------------------------------------