ID de Prueba:	1.3.6.1.4.1.25623.1.0.871048
Categoría:	Red Hat Local Security Checks
Título:	RedHat Update for sudo RHSA-2013:1353-01
Resumen:	The remote host is missing an update for the 'sudo'; package(s) announced via the referenced advisory.
Descripción:	Summary: The remote host is missing an update for the 'sudo' package(s) announced via the referenced advisory. Vulnerability Insight: The sudo (superuser do) utility allows system administrators to give certain users the ability to run commands as root. A flaw was found in the way sudo handled time stamp files. An attacker able to run code as a local user and with the ability to control the system clock could possibly gain additional privileges by running commands that the victim user was allowed to run via sudo, without knowing the victim's password. (CVE-2013-1775) It was found that sudo did not properly validate the controlling terminal device when the tty_tickets option was enabled in the /etc/sudoers file. An attacker able to run code as a local user could possibly gain additional privileges by running commands that the victim user was allowed to run via sudo, without knowing the victim's password. (CVE-2013-1776, CVE-2013-2776) This update also fixes the following bugs: * Due to a bug in the cycle detection algorithm of the visudo utility, visudo incorrectly evaluated certain alias definitions in the /etc/sudoers file as cycles. Consequently, a warning message about undefined aliases appeared. This bug has been fixed, /etc/sudoers is now parsed correctly by visudo and the warning message no longer appears. (BZ#849679) * Previously, the 'sudo -l' command did not parse the /etc/sudoers file correctly if it contained an Active Directory (AD) group. The file was parsed only up to the first AD group information and then the parsing failed with the following message: sudo: unable to cache group ADDOM\admingroup, already exists With this update, the underlying code has been modified and 'sudo -l' now parses /etc/sudoers containing AD groups correctly. (BZ#855836) * Previously, the sudo utility did not escape the backslash characters contained in user names properly. Consequently, if a system used sudo integrated with LDAP or Active Directory (AD) as the primary authentication mechanism, users were not able to authenticate on that system. With this update, sudo has been modified to process LDAP and AD names correctly and the authentication process now works as expected. (BZ#869287) * Prior to this update, the 'visudo -s (strict)' command incorrectly parsed certain alias definitions. Consequently, an error message was issued. The bug has been fixed, and parsing errors no longer occur when using 'visudo - -s'. (BZ#905624) All sudo users are advised to upgrade to this updated package, which contains backported patches to correct these issues. Affected Software/OS: sudo on Red Hat Enterprise Linux (v. 5 server) Solution: Please Install the Updated Packages. CVSS Score: 6.9 CVSS Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C
Referencia Cruzada:	Common Vulnerability Exposure (CVE) ID: CVE-2013-1775 http://lists.apple.com/archives/security-announce/2013/Sep/msg00002.html http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html BugTraq ID: 58203 http://www.securityfocus.com/bid/58203 Debian Security Information: DSA-2642 (Google Search) http://www.debian.org/security/2013/dsa-2642 http://www.openwall.com/lists/oss-security/2013/02/27/22 http://osvdb.org/90677 RedHat Security Advisories: RHSA-2013:1353 http://rhn.redhat.com/errata/RHSA-2013-1353.html RedHat Security Advisories: RHSA-2013:1701 http://rhn.redhat.com/errata/RHSA-2013-1701.html http://www.slackware.com/security/viewer.php?l=slackware-security&y=2013&m=slackware-security.517440 SuSE Security Announcement: openSUSE-SU-2013:0495 (Google Search) http://lists.opensuse.org/opensuse-updates/2013-03/msg00066.html http://www.ubuntu.com/usn/USN-1754-1 Common Vulnerability Exposure (CVE) ID: CVE-2013-1776 BugTraq ID: 58207 http://www.securityfocus.com/bid/58207 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=701839 https://bugs.launchpad.net/ubuntu/+source/sudo/+bug/87023 https://bugzilla.redhat.com/show_bug.cgi?id=916365 http://www.openwall.com/lists/oss-security/2013/02/27/31 XForce ISS Database: sudo-ttytickets-sec-bypass(82453) https://exchange.xforce.ibmcloud.com/vulnerabilities/82453 Common Vulnerability Exposure (CVE) ID: CVE-2013-2776 BugTraq ID: 62741 http://www.securityfocus.com/bid/62741
Copyright	Copyright (C) 2013 Greenbone AG

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