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Amazon Linux 2 : memcached (ALAS-2018-964)

high Nessus Plugin ID 109132

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Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

It was discovered that the memcached daemon listened on UDP port 11211 by default. An attacker could use memcached for UDP amplification denial-of-service attacks. The UDP port has been disabled by default, but can still be enabled.

It was discovered that the memcached connections using UDP transport protocol can be abused for efficient traffic amplification distributed denial of service (DDoS) attacks. A remote attacker could send a malicious UDP request using a spoofed source IP address of a target system to memcached, causing it to send a significantly larger response to the target. (CVE-2018-1000115)

Solution

Run 'yum update memcached' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2018-964.html

Plugin Details

Severity: High

ID: 109132

File Name: al2_ALAS-2018-964.nasl

Version: 1.4

Type: local

Agent: unix

Published: 4/18/2018

Updated: 4/5/2019

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

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:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:memcached, p-cpe:/a:amazon:linux:memcached-debuginfo, p-cpe:/a:amazon:linux:memcached-devel, cpe:/o:amazon:linux:2

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: 3/8/2018

Reference Information

CVE: CVE-2018-1000115

ALAS: 2018-964