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Amazon Linux AMI : lighttpd (ALAS-2014-299)

high Nessus Plugin ID 72947

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Synopsis

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

Description

Use-after-free vulnerability in lighttpd before 1.4.33 allows remote attackers to cause a denial of service (segmentation fault and crash) via unspecified vectors that trigger FAMMonitorDirectory failures.

lighttpd before 1.4.34, when SNI is enabled, configures weak SSL ciphers, which makes it easier for remote attackers to hijack sessions by inserting packets into the client-server data stream or obtain sensitive information by sniffing the network.

lighttpd before 1.4.33 does not check the return value of the (1) setuid, (2) setgid, or (3) setgroups functions, which might cause lighttpd to run as root if it is restarted and allows remote attackers to gain privileges, as demonstrated by multiple calls to the clone function that cause setuid to fail when the user process limit is reached.

Solution

Run 'yum update lighttpd' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2014-299.html

Plugin Details

Severity: High

ID: 72947

File Name: ala_ALAS-2014-299.nasl

Version: 1.4

Type: local

Agent: unix

Published: 3/12/2014

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: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.6

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:lighttpd-fastcgi, cpe:/o:amazon:linux, p-cpe:/a:amazon:linux:lighttpd-mod_mysql_vhost, p-cpe:/a:amazon:linux:lighttpd, p-cpe:/a:amazon:linux:lighttpd-debuginfo, p-cpe:/a:amazon:linux:lighttpd-mod_geoip

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

Patch Publication Date: 3/6/2014

Reference Information

CVE: CVE-2013-4508, CVE-2013-4559, CVE-2013-4560

ALAS: 2014-299