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Scientific Linux Security Update : samba and cifs-utils on SL6.x i386/x86_64
medium Nessus Plugin ID 61122
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Synopsis
The remote Scientific Linux host is missing one or more security updates.Description
Samba is a suite of programs used by machines to share files, printers, and other information. The cifs-utils package contains utilities for mounting and managing CIFS (Common Internet File System) shares.A cross-site scripting (XSS) flaw was found in the password change page of the Samba Web Administration Tool (SWAT). If a remote attacker could trick a user, who was logged into the SWAT interface, into visiting a specially crafted URL, it would lead to arbitrary web script execution in the context of the user's SWAT session.
(CVE-2011-2694)
It was found that SWAT web pages did not protect against Cross-Site Request Forgery (CSRF) attacks. If a remote attacker could trick a user, who was logged into the SWAT interface, into visiting a specially crafted URL, the attacker could perform Samba configuration changes with the privileges of the logged in user. (CVE-2011-2522)
It was found that the fix for CVE-2010-0547, provided in the cifs-utils package included in the GA release of Scientific Linux 6, was incomplete. The mount.cifs tool did not properly handle share or directory names containing a newline character, allowing a local attacker to corrupt the mtab (mounted file systems table) file via a specially crafted CIFS share mount request, if mount.cifs had the setuid bit set. (CVE-2011-2724)
It was found that the mount.cifs tool did not handle certain errors correctly when updating the mtab file. If mount.cifs had the setuid bit set, a local attacker could corrupt the mtab file by setting a small file size limit before running mount.cifs. (CVE-2011-1678)
Note: mount.cifs from the cifs-utils package distributed by Scientific Linux does not have the setuid bit set. We recommend that administrators do not manually set the setuid bit for mount.cifs.
This update also fixes the following bug :
- If plain text passwords were used ('encrypt passwords = no' in '/etc/samba/smb.conf'), Samba clients running the Windows XP or Windows Server 2003 operating system may not have been able to access Samba shares after installing the Microsoft Security Bulletin MS11-043.
This update corrects this issue, allowing such clients to use plain text passwords to access Samba shares.
Users of samba and cifs-utils are advised to upgrade to these updated packages, which contain backported patches to resolve these issues.
After installing this update, the smb service will be restarted automatically.
Solution
Update the affected packages.See Also
Plugin Details
Severity: Medium
ID: 61122
File Name: sl_20110829_samba_and_cifs_utils_on_SL6_x.nasl
Version: 1.6
Type: local
Agent: unix
Published: 8/1/2012
Updated: 1/14/2021
Supported Sensors: Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: Medium
Base Score: 6.8
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P
Vulnerability Information
CPE: x-cpe:/o:fermilab:scientific_linux
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Patch Publication Date: 8/29/2011
Reference Information
CVE: CVE-2011-1678, CVE-2011-2522, CVE-2011-2694, CVE-2011-2724