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Amazon Linux AMI : squid (ALAS-2016-735)

critical Nessus Plugin ID 93013

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Synopsis

The remote Amazon Linux AMI host is missing a security update.

Description

A buffer overflow flaw was found in the way the Squid cachemgr.cgi utility processed remotely relayed Squid input. When the CGI interface utility is used, a remote attacker could possibly use this flaw to execute arbitrary code. (CVE-2016-4051)

It was found that the fix for CVE-2016-4051 did not properly prevent the stack overflow in the munge_other_line() function. A remote attacker could send specially crafted data to the Squid proxy, which would exploit the cachemgr CGI utility, possibly triggering execution of arbitrary code. (CVE-2016-5408)

Solution

Run 'yum update squid' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2016-735.html

Plugin Details

Severity: Critical

ID: 93013

File Name: ala_ALAS-2016-735.nasl

Version: 2.3

Type: local

Agent: unix

Published: 8/18/2016

Updated: 4/18/2018

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS v3

Risk Factor: Critical

Base Score: 9.8

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

Vulnerability Information

CPE: cpe:/o:amazon:linux, p-cpe:/a:amazon:linux:squid, p-cpe:/a:amazon:linux:squid-debuginfo

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

Patch Publication Date: 8/17/2016

Reference Information

CVE: CVE-2016-4051, CVE-2016-5408

ALAS: 2016-735