Mandriva Linux Security Advisory : sudo (MDVSA-2013:054)

This script is Copyright (C) 2013-2016 Tenable Network Security, Inc.


Synopsis :

The remote Mandriva Linux host is missing one or more security
updates.

Description :

Multiple vulnerabilities has been found and corrected in sudo :

A flaw exists in the IP network matching code in sudo versions 1.6.9p3
through 1.8.4p4 that may result in the local host being matched even
though it is not actually part of the network described by the IP
address and associated netmask listed in the sudoers file or in LDAP.
As a result, users authorized to run commands on certain IP networks
may be able to run commands on hosts that belong to other networks not
explicitly listed in sudoers (CVE-2012-2337).

sudo 1.6.0 through 1.7.10p6 and sudo 1.8.0 through 1.8.6p6 allows
local users or physically-proximate attackers to bypass intended time
restrictions and retain privileges without re-authenticating by
setting the system clock and sudo user timestamp to the epoch
(CVE-2013-1775).

Sudo before 1.8.6p7 allows a malicious user to run commands via sudo
without authenticating, so long as there exists a terminal the user
has access to where a sudo command was successfully run by that same
user within the password timeout period (usually five minutes)
(CVE-2013-1776).

The updated packages have been patched to correct these issues.

See also :

http://www.sudo.ws/sudo/alerts/epoch_ticket.html
http://www.sudo.ws/sudo/alerts/netmask.html
http://www.sudo.ws/sudo/alerts/tty_tickets.html

Solution :

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

Risk factor :

High / CVSS Base Score : 7.2
(CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 5.6
(CVSS2#E:POC/RL:OF/RC:C)
Public Exploit Available : true

Family: Mandriva Local Security Checks

Nessus Plugin ID: 66068 ()

Bugtraq ID: 53569
58203
58207

CVE ID: CVE-2012-2337
CVE-2013-1775
CVE-2013-1776

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