CentOS 6 : httpd (CESA-2017:2972) (Optionsbleed)

high Nessus Plugin ID 104053
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 CentOS host is missing one or more security updates.

Description

An update for httpd is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server.

Security Fix(es) :

* A use-after-free flaw was found in the way httpd handled invalid and previously unregistered HTTP methods specified in the Limit directive used in an .htaccess file. A remote attacker could possibly use this flaw to disclose portions of the server memory, or cause httpd child process to crash. (CVE-2017-9798)

* A regression was found in the Red Hat Enterprise Linux 6.9 version of httpd, causing comments in the 'Allow' and 'Deny' configuration lines to be parsed incorrectly. A web administrator could unintentionally allow any client to access a restricted HTTP resource.
(CVE-2017-12171)

Red Hat would like to thank Hanno Bock for reporting CVE-2017-9798 and KAWAHARA Masashi for reporting CVE-2017-12171.

Solution

Update the affected httpd packages.

See Also

http://www.nessus.org/u?606f1793

Plugin Details

Severity: High

ID: 104053

File Name: centos_RHSA-2017-2972.nasl

Version: 3.8

Type: local

Agent: unix

Published: 10/23/2017

Updated: 1/4/2021

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2017-12171

VPR

Risk Factor: Medium

Score: 6.1

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 5

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

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

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

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

Vulnerability Information

CPE: p-cpe:/a:centos:centos:httpd, p-cpe:/a:centos:centos:httpd-devel, p-cpe:/a:centos:centos:httpd-manual, p-cpe:/a:centos:centos:httpd-tools, p-cpe:/a:centos:centos:mod_ssl, cpe:/o:centos:centos:6

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: 10/20/2017

Vulnerability Publication Date: 9/18/2017

Reference Information

CVE: CVE-2017-12171, CVE-2017-9798

RHSA: 2017:2972