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CVE-2012-2337

Status Candidate

Overview

sudo 1.6.x and 1.7.x before 1.7.9p1, and 1.8.x before 1.8.4p5, does not properly support configurations that use a netmask syntax, which allows local users to bypass intended command restrictions in opportunistic circumstances by executing a command on a host that has an IPv4 address.

Related Files

Mandriva Linux Security Advisory 2013-054
Posted Apr 7, 2013
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2013-054 - 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. 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. 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. The updated packages have been patched to correct these issues.

tags | advisory, local
systems | linux, mandriva
advisories | CVE-2012-2337, CVE-2013-1775, CVE-2013-1776
MD5 | dfead7a98a30d8a1fd5649a857071f2a
Red Hat Security Advisory 2012-1081-01
Posted Jul 16, 2012
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2012-1081-01 - The sudo utility allows system administrators to give certain users the ability to run commands as root. A flaw was found in the way the network matching code in sudo handled multiple IP networks listed in user specification configuration directives. A user, who is authorized to run commands with sudo on specific hosts, could use this flaw to bypass intended restrictions and run those commands on hosts not matched by any of the network specifications. All users of sudo are advised to upgrade to this updated package, which contains a backported patch to correct this issue.

tags | advisory, root
systems | linux, redhat
advisories | CVE-2012-2337
MD5 | 58b8344d31be5f67afc14314a1c614ad
Gentoo Linux Security Advisory 201207-01
Posted Jul 10, 2012
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201207-1 - A vulnerability has been found in sudo which may allow local users to gain escalated privileges. Versions less than 1.8.5_p1 are affected.

tags | advisory, local
systems | linux, gentoo
advisories | CVE-2012-2337
MD5 | 76dfecf3409783fc1182bf0c997aaff0
Debian Security Advisory 2478-1
Posted May 24, 2012
Authored by Debian | Site debian.org

Debian Linux Security Advisory 2478-1 - It was discovered that sudo misparsed network masks used in Host and Host_List stanzas. This allowed the execution of commands on hosts, where the user would not be allowed to run the specified command.

tags | advisory
systems | linux, debian
advisories | CVE-2012-2337
MD5 | 0fb35332f786e3a43d2bfaed445f35b4
Mandriva Linux Security Advisory 2012-079
Posted May 22, 2012
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2012-079 - 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. The updated packages have been patched to correct this issue.

tags | advisory, local
systems | linux, mandriva
advisories | CVE-2012-2337
MD5 | a82d4f16637b3e9c765adcb020435e6e
Ubuntu Security Notice USN-1442-1
Posted May 16, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1442-1 - It was discovered that sudo incorrectly handled network masks when using Host and Host_List. A local user who is listed in sudoers may be allowed to run commands on unintended hosts when IPv4 network masks are used to grant access. A local attacker could exploit this to bypass intended access restrictions. Host and Host_List are not used in the default installation of Ubuntu.

tags | advisory, local
systems | linux, ubuntu
advisories | CVE-2012-2337
MD5 | 8bd15a43a016332b8e59a510137e4128
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