AIX OpenSSH Advisory : openssh_advisory2.asc

medium Nessus Plugin ID 73558

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Synopsis

The remote AIX host is running a vulnerable version of OpenSSH.

Description

The version of OpenSSH running on the remote host is affected by a denial of service vulnerability. The default configuration of OpenSSH through 6.1 enforces a fixed time limit between establishing a TCP connection and completing a login, which makes it easier for remote attackers to cause a denial of service (connection-slot exhaustion) by periodically making many new TCP connections.

Solution

A fix is available, and it can be downloaded from the AIX website.

To extract the fixes from the tar file:
zcat OpenSSH_6.0.0.6102.tar.Z | tar xvf -

IMPORTANT: If possible, it is recommended that a mksysb backup of the system be created. Verify it is both bootable and readable before proceeding.

To preview the fix installation:
installp -apYd . OpenSSH_6.0.0.6102

To install the fix package:
installp -aXYd . OpenSSH_6.0.0.6102

Plugin Details

Severity: Medium

ID: 73558

File Name: aix_openssh_advisory2.nasl

Version: 1.7

Type: local

Family: AIX Local Security Checks

Published: 4/16/2014

Updated: 4/21/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 4.4

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

Vulnerability Information

CPE: cpe:/o:ibm:aix

Required KB Items: Host/AIX/lslpp, Host/local_checks_enabled, Host/AIX/version

Exploit Ease: No known exploits are available

Patch Publication Date: 4/8/2013

Vulnerability Publication Date: 2/6/2013

Reference Information

CVE: CVE-2010-5107

BID: 58162

Detections

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