ID de Prueba:	1.3.6.1.4.1.25623.1.0.871085
Categoría:	Red Hat Local Security Checks
Título:	RedHat Update for sudo RHSA-2013:1701-02
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-2013-2776, CVE-2013-2777) This update also fixes the following bugs: * Previously, sudo did not support netgroup filtering for sources from the System Security Services Daemon (SSSD). Consequently, SSSD rules were applied to all users even when they did not belong to the specified netgroup. With this update, netgroup filtering for SSSD sources has been implemented. As a result, rules with a netgroup specification are applied only to users that are part of the netgroup. (BZ#880150) * When the sudo utility set up the environment in which it ran a command, it reset the value of the RLIMIT_NPROC resource limit to the parent's value of this limit if both the soft (current) and hard (maximum) values of RLIMIT_NPROC were not limited. An upstream patch has been provided to address this bug and RLIMIT_NPROC can now be set to 'unlimited'. (BZ#947276) * Due to the refactoring of the sudo code by upstream, the SUDO_USER variable that stores the name of the user running the sudo command was not logged to the /var/log/secure file as before. Consequently, user name 'root' was always recorded instead of the real user name. With this update, the previous behavior of sudo has been restored. As a result, the expected user name is now written to /var/log/secure. (BZ#973228) * Due to an error in a loop condition in sudo's rule listing code, a buffer overflow could have occurred in certain cases. This condition has been fixed and the buffer overflow no longer occurs. (BZ#994626) In addition, this update adds the following enhancements: * With this update, sudo has been modified to send debug messages about netgroup matching to the debug log. These messages should provide better understanding of how sudo matches netgroup d ... Description truncated, please see the referenced URL(s) for more information. Affected Software/OS: sudo on Red Hat Enterprise Linux Desktop (v. 6), Red Hat Enterprise Linux Server (v. 6), Red Hat Enterprise Linux Workstation (v. 6) 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-2013-2776 BugTraq ID: 58207 http://www.securityfocus.com/bid/58207 BugTraq ID: 62741 http://www.securityfocus.com/bid/62741 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-2013-2777
Copyright	Copyright (C) 2013 Greenbone AG

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