Detections
Analytics
CentOS 6 : libuser (CESA-2015:1482)
medium Nessus Plugin ID 85029
Language:
Synopsis
The remote CentOS host is missing one or more security updates.Description
Updated libuser packages that fix two security issues are now available for Red Hat Enterprise Linux 6.Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.
The libuser library implements a standardized interface for manipulating and administering user and group accounts. Sample applications that are modeled after applications from the shadow password suite (shadow-utils) are included in these packages.
Two flaws were found in the way the libuser library handled the /etc/passwd file. A local attacker could use an application compiled against libuser (for example, userhelper) to manipulate the /etc/passwd file, which could result in a denial of service or possibly allow the attacker to escalate their privileges to root.
(CVE-2015-3245, CVE-2015-3246)
Red Hat would like to thank Qualys for reporting these issues.
All libuser users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue.
Solution
Update the affected libuser packages.See Also
Plugin Details
Severity: Medium
ID: 85029
File Name: centos_RHSA-2015-1482.nasl
Version: 2.7
Type: Local
Agent: unix
Family: CentOS Local Security Checks
Published: 7/28/2015
Updated: 8/26/2026
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus
Risk Information
VPR
Risk Factor: High
Score: 7.6
Percentile: 98.37
CVSS v2
Risk Factor: High
Base Score: 7.2
Temporal Score: 6.3
Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2015-3246
CVSS v3
Risk Factor: Medium
Base Score: 5.1
Temporal Score: 4.9
Vector: CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:centos:centos:6, p-cpe:/a:centos:centos:libuser-devel, p-cpe:/a:centos:centos:libuser-python, p-cpe:/a:centos:centos:libuser
Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 7/26/2015
CISA Known Exploited Vulnerability Due Dates: 9/9/2026
Exploitable With
Core Impact
Metasploit (Libuser roothelper Privilege Escalation)
Reference Information
CVE: CVE-2015-3245, CVE-2015-3246
IAVA: 2015-A-0179
RHSA: 2015:1482