SUSE SLES11 Security Update : sudo (SUSE-SU-2016:2891-1)

high Nessus Plugin ID 95312
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote SUSE host is missing one or more security updates.

Description

This update for sudo fixes the following issues :

- Fix two security vulnerabilities that allowed users to bypass sudo's NOEXEC functionality :

- noexec bypass via system() and popen() [CVE-2016-7032, bsc#1007766]

- noexec bypass via wordexp() [CVE-2016-7076, bsc#1007501]

- The SSSD plugin would occasionally crash sudo with an 'internal error'. This issue has been fixed.
[bsc#948973]

- The SSSD plugin would occasionally apply @netgroups rules from LDAP to all users rather than the @netgroup.
This issue is now fixed. [bsc#966755]

- When the SSSD plugin was used and a local user ran sudo, an e-mail used to be sent to administrator because SSSD did not support sudo rules for local users. This message did not signify an error, however, it was only noise.
[bsc#1008043]

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Server 11-SP4:zypper in -t patch slessp4-sudo-12852=1

SUSE Linux Enterprise Debuginfo 11-SP4:zypper in -t patch dbgsp4-sudo-12852=1

To bring your system up-to-date, use 'zypper patch'.

See Also

https://bugzilla.suse.com/show_bug.cgi?id=1007501

https://bugzilla.suse.com/show_bug.cgi?id=1007766

https://bugzilla.suse.com/show_bug.cgi?id=1008043

https://bugzilla.suse.com/show_bug.cgi?id=948973

https://bugzilla.suse.com/show_bug.cgi?id=966755

https://www.suse.com/security/cve/CVE-2016-7032/

https://www.suse.com/security/cve/CVE-2016-7076/

http://www.nessus.org/u?673f63b1

Plugin Details

Severity: High

ID: 95312

File Name: suse_SU-2016-2891-1.nasl

Version: 3.10

Type: local

Agent: unix

Published: 11/25/2016

Updated: 1/19/2021

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:sudo, cpe:/o:novell:suse_linux:11

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 11/23/2016

Vulnerability Publication Date: 4/14/2017

Reference Information

CVE: CVE-2016-7032, CVE-2016-7076