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EulerOS 2.0 SP1 : openssh (EulerOS-SA-2016-1008)

critical Nessus Plugin ID 99771

Synopsis

The remote EulerOS host is missing multiple security updates.

Description

According to the versions of the openssh packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

 - It was discovered that the OpenSSH server did not sanitize data received in requests to enable X11 forwarding. An authenticated client with restricted SSH access could possibly use this flaw to bypass intended restrictions. (CVE-2016-3115)

 - An access flaw was discovered in OpenSSH the OpenSSH client did not correctly handle failures to generate authentication cookies for untrusted X11 forwarding. A malicious or compromised remote X application could possibly use this flaw to establish a trusted connection to the local X server, even if only untrusted X11 forwarding was requested. (CVE-2016-1908)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected openssh packages.

See Also

http://www.nessus.org/u?48f275ff

Plugin Details

Severity: Critical

ID: 99771

File Name: EulerOS_SA-2016-1008.nasl

Version: 1.15

Type: local

Published: 5/1/2017

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:openssh, p-cpe:/a:huawei:euleros:openssh-askpass, p-cpe:/a:huawei:euleros:openssh-clients, p-cpe:/a:huawei:euleros:openssh-keycat, p-cpe:/a:huawei:euleros:openssh-server, cpe:/o:huawei:euleros:2.0

Required KB Items: Host/local_checks_enabled, Host/EulerOS/release, Host/EulerOS/rpm-list, Host/EulerOS/sp

Excluded KB Items: Host/EulerOS/uvp_version

Patch Publication Date: 3/21/2016

Reference Information

CVE: CVE-2016-1908, CVE-2016-3115