Detections
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RHEL 5 : openssh (Unpatched Vulnerability)

critical Nessus Plugin ID 198928

Synopsis

The remote Red Hat 5 host is affected by multiple vulnerabilities that will not be patched.

Description

The remote Redhat Enterprise Linux 5 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

 - openssh: MaxAuthTries limit bypass via duplicates in KbdInteractiveDevices (CVE-2015-5600)

 - openssh: possible fallback from untrusted to trusted X11 forwarding (CVE-2016-1908)

 - 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. (CVE-2010-5107)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

Solution

The vendor has acknowledged the vulnerabilities but no solution has been provided. Refer to the vendor for remediation guidance.

Plugin Details

Severity: Critical

ID: 198928

File Name: redhat_unpatched_openssh-rhel5.nasl

Version: 1.2

Type: local

Agent: unix

Published: 6/3/2024

Updated: 6/4/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 7.4

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

CVSS Score Source: CVE-2015-5600

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.4

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

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

CVSS Score Source: CVE-2016-1908

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:openssh, cpe:/o:redhat:enterprise_linux:5

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 4/5/2012

Exploitable With

CANVAS (CANVAS)

Reference Information

CVE: CVE-2010-5107, CVE-2011-5000, CVE-2014-2532, CVE-2014-2653, CVE-2015-5352, CVE-2015-5600, CVE-2015-6563, CVE-2015-6564, CVE-2015-8325, CVE-2016-10009, CVE-2016-10011, CVE-2016-10012, CVE-2016-10708, CVE-2016-1908, CVE-2016-3115, CVE-2016-6210, CVE-2016-6515, CVE-2018-15473