Amazon Linux AMI : httpd24 / httpd (ALAS-2017-896) (Optionsbleed)

high Nessus Plugin ID 103309
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 Amazon Linux AMI host is missing a security update.

Description

Apache httpd allows remote attackers to read secret data from process memory if the Limit directive can be set in a user's .htaccess file, or if httpd.conf has certain misconfigurations, aka Optionsbleed. The attacker sends an unauthenticated OPTIONS HTTP request when attempting to read secret data. This is a use-after-free issue and thus secret data is not always sent, and the specific data depends on many factors including configuration.(CVE-2017-9798)

Solution

Run 'yum update httpd24' to update your system.

Run 'yum update httpd' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2017-896.html

Plugin Details

Severity: High

ID: 103309

File Name: ala_ALAS-2017-896.nasl

Version: 3.7

Type: local

Agent: unix

Published: 9/19/2017

Updated: 4/10/2019

Dependencies: ssh_get_info.nasl

Risk Information

VPR

Risk Factor: Medium

Score: 6.1

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

Vector: AV:N/AC:L/Au:N/C:P/I:N/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:amazon:linux:httpd, p-cpe:/a:amazon:linux:httpd-debuginfo, p-cpe:/a:amazon:linux:httpd-devel, p-cpe:/a:amazon:linux:httpd-manual, p-cpe:/a:amazon:linux:httpd-tools, p-cpe:/a:amazon:linux:httpd24, p-cpe:/a:amazon:linux:httpd24-debuginfo, p-cpe:/a:amazon:linux:httpd24-devel, p-cpe:/a:amazon:linux:httpd24-manual, p-cpe:/a:amazon:linux:httpd24-tools, p-cpe:/a:amazon:linux:mod24_ldap, p-cpe:/a:amazon:linux:mod24_proxy_html, p-cpe:/a:amazon:linux:mod24_session, p-cpe:/a:amazon:linux:mod24_ssl, p-cpe:/a:amazon:linux:mod_ssl, cpe:/o:amazon:linux

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/18/2017

Reference Information

CVE: CVE-2017-9798

ALAS: 2017-896