Detections
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Amazon Linux AMI : mod_dav_svn / subversion (ALAS-2016-676)
high Nessus Plugin ID 90269
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Synopsis
The remote Amazon Linux AMI host is missing a security update.Description
It was found that when an SVN server (both svnserve and httpd with the mod_dav_svn module) searched the history of a file or a directory, it would disclose its location in the repository if that file or directory was not readable (for example, if it had been moved).(CVE-2015-3187)
An integer overflow was discovered allowing remote attackers to execute arbitrary code via an svn:// protocol string, which triggers a heap-based buffer overflow and an out-of-bounds read. (CVE-2015-5259)
It was found that the mod_authz_svn module did not properly restrict anonymous access to Subversion repositories under certain configurations when used with Apache httpd 2.4.x. This could allow a user to anonymously access files in a Subversion repository, which should only be accessible to authenticated users. (CVE-2015-3184)
It was found that the mod_dav_svn module was vulnerable to a remotely triggerable heap-based buffer overflow and out-of-bounds read caused by an integer overflow when parsing skel-encoded request bodies, allowing an attacker with write access to a repository to cause a denial of service attack (on 32-bit or 64-bit servers) or possibly execute arbitrary code (on 32-bit servers only) under the context of the httpd process. (CVE-2015-5343)
Solution
Run 'yum update mod_dav_svn' to update your system.Run 'yum update subversion' to update your system.
See Also
Plugin Details
Severity: High
ID: 90269
File Name: ala_ALAS-2016-676.nasl
Version: 2.4
Type: local
Agent: unix
Published: 4/1/2016
Updated: 4/18/2018
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.7
CVSS v2
Risk Factor: High
Base Score: 9
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:C
CVSS v3
Risk Factor: High
Base Score: 8.6
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Vulnerability Information
CPE: p-cpe:/a:amazon:linux:subversion-libs, p-cpe:/a:amazon:linux:subversion-debuginfo, p-cpe:/a:amazon:linux:subversion-python26, cpe:/o:amazon:linux, p-cpe:/a:amazon:linux:subversion-ruby, p-cpe:/a:amazon:linux:subversion-python27, p-cpe:/a:amazon:linux:subversion-javahl, p-cpe:/a:amazon:linux:subversion-devel, p-cpe:/a:amazon:linux:mod_dav_svn, p-cpe:/a:amazon:linux:subversion-perl, p-cpe:/a:amazon:linux:subversion-tools, p-cpe:/a:amazon:linux:mod24_dav_svn, p-cpe:/a:amazon:linux:mod_dav_svn-debuginfo, p-cpe:/a:amazon:linux:subversion
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list
Patch Publication Date: 3/29/2016
Reference Information
CVE: CVE-2015-3184, CVE-2015-3187, CVE-2015-5259, CVE-2015-5343
ALAS: 2016-676