OpenSSH < 2.9.9p2 echo simulation Information Disclosure

medium Nessus Plugin ID 44070

Synopsis

The remote SSH service is affected by an information disclosure vulnerability.

Description

According to its banner, the remote host is running a version of OpenSSH earlier than 2.9.9p2. It therefore can potentially disclose the fact that the 'echo simulation' countermeasure is in use because the application sends an additional echo packet after the password and carriage return is entered.

Note that this issue only exists when the 'echo simulation' countermeasure is enabled.

Solution

Upgrade to OpenSSH 2.9.9p2 or later.

Plugin Details

Severity: Medium

ID: 44070

File Name: openssh_299p2.nasl

Version: 1.3

Type: remote

Family: Misc.

Published: 10/4/2011

Updated: 3/27/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.1

CVSS v2

Risk Factor: Medium

Base Score: 5

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

Vulnerability Information

CPE: cpe:/a:openbsd:openssh

Required KB Items: installed_sw/OpenSSH

Patch Publication Date: 9/28/2001

Vulnerability Publication Date: 9/27/2001

Reference Information

CVE: CVE-2001-1382