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

high Nessus Plugin ID 103309

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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