Ubuntu 6.06 LTS / 8.04 LTS / 8.10 / 9.04 / 9.10 : sudo vulnerabilities (USN-905-1)

Ubuntu Security Notice (C) 2010-2014 Canonical, Inc. / NASL script (C) 2010-2014 Tenable Network Security, Inc.


Synopsis :

The remote Ubuntu host is missing one or more security-related patches.

Description :

It was discovered that sudo did not properly validate the path for the
'sudoedit' pseudo-command. A local attacker could exploit this to
execute arbitrary code as root if sudo was configured to allow the
attacker to use sudoedit. The sudoedit pseudo-command is not used in
the default installation of Ubuntu. (CVE-2010-0426)

It was discovered that sudo did not reset group permissions when the
'runas_default' configuration option was used. A local attacker could
exploit this to escalate group privileges if sudo was configured to
allow the attacker to run commands under the runas_default account.
The runas_default configuration option is not used in the default
installation of Ubuntu. This issue affected Ubuntu 8.04 LTS, 8.10 and
9.04. (CVE-2010-0427).

Solution :

Update the affected sudo and / or sudo-ldap packages.

Risk factor :

Medium / CVSS Base Score : 6.9
(CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 6.0
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : true

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 44936 ()

Bugtraq ID: 38362
38432

CVE ID: CVE-2010-0426
CVE-2010-0427