Amazon Linux 2 : openssh (ALAS-2018-1075)

Medium Nessus Plugin ID 117708

Synopsis

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

Description

OpenSSH through 7.7 is prone to a user enumeration vulnerability due to not delaying bailout for an invalid authenticating user until after the packet containing the request has been fully parsed, related to auth2-gss.c, auth2-hostbased.c, and auth2-pubkey.c.(CVE-2018-15473)

Solution

Run 'yum update openssh' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2018-1075.html

Plugin Details

Severity: Medium

ID: 117708

File Name: al2_ALAS-2018-1075.nasl

Version: 1.3

Type: local

Agent: unix

Published: 2018/09/27

Modified: 2018/11/01

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 5

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

CVSS v3.0

Base Score: 5.3

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:openssh, p-cpe:/a:amazon:linux:openssh-askpass, p-cpe:/a:amazon:linux:openssh-cavs, 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:openssh-server-sysvinit, p-cpe:/a:amazon:linux:pam_ssh_agent_auth, 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: 2018/09/25

Exploitable With

CANVAS (CANVAS)

Reference Information

CVE: CVE-2018-15473

ALAS: 2018-1075