Amazon Linux AMI : openssh (ALAS-2014-369)

Medium Nessus Plugin ID 78312

Synopsis

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

Description

sshd in OpenSSH before 6.6 does not properly support wildcards on AcceptEnv lines in sshd_config, which allows remote attackers to bypass intended environment restrictions by using a substring located before a wildcard character.

The verify_host_key function in sshconnect.c in the client in OpenSSH 6.6 and earlier allows remote servers to trigger the skipping of SSHFP DNS RR checking by presenting an unacceptable HostCertificate.

Solution

Run 'yum update openssh' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2014-369.html

Plugin Details

Severity: Medium

ID: 78312

File Name: ala_ALAS-2014-369.nasl

Version: 1.6

Type: local

Agent: unix

Published: 2014/10/12

Updated: 2018/04/18

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 5.8

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

CVSS v3.0

Base Score: 4.9

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:openssh, p-cpe:/a:amazon:linux:openssh-clients, p-cpe:/a:amazon:linux:openssh-debuginfo, p-cpe:/a:amazon:linux:openssh-keycat, p-cpe:/a:amazon:linux:openssh-ldap, p-cpe:/a:amazon:linux:openssh-server, p-cpe:/a:amazon:linux:pam_ssh_agent_auth, cpe:/o:amazon:linux

Patch Publication Date: 2014/07/09

Reference Information

CVE: CVE-2014-2532, CVE-2014-2653

ALAS: 2014-369