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RHEL 7 : openssh (RHSA-2019:2143)

medium Nessus Plugin ID 127683

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Synopsis

The remote Red Hat host is missing a security update.

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2019:2143 advisory.

 - openssh: User enumeration via malformed packets in authentication requests (CVE-2018-15473)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

http://www.nessus.org/u?cc7115e8

http://www.nessus.org/u?da75a465

https://access.redhat.com/errata/RHSA-2019:2143

https://access.redhat.com/security/updates/classification/#low

https://bugzilla.redhat.com/show_bug.cgi?id=1583735

https://bugzilla.redhat.com/show_bug.cgi?id=1619063

https://bugzilla.redhat.com/show_bug.cgi?id=1712053

https://bugzilla.redhat.com/show_bug.cgi?id=1722446

Plugin Details

Severity: Medium

ID: 127683

File Name: redhat-RHSA-2019-2143.nasl

Version: 1.7

Type: local

Agent: unix

Published: 8/12/2019

Updated: 5/6/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 4.4

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

CVSS Score Source: CVE-2018-15473

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 5.1

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:openssh, p-cpe:/a:redhat:enterprise_linux:openssh-askpass, p-cpe:/a:redhat:enterprise_linux:openssh-cavs, p-cpe:/a:redhat:enterprise_linux:openssh-clients, p-cpe:/a:redhat:enterprise_linux:openssh-keycat, p-cpe:/a:redhat:enterprise_linux:openssh-ldap, p-cpe:/a:redhat:enterprise_linux:openssh-server, p-cpe:/a:redhat:enterprise_linux:openssh-server-sysvinit, p-cpe:/a:redhat:enterprise_linux:pam_ssh_agent_auth, cpe:/o:redhat:enterprise_linux:7

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/6/2019

Vulnerability Publication Date: 8/17/2018

Exploitable With

CANVAS (CANVAS)

Reference Information

CVE: CVE-2018-15473

CWE: 200

RHSA: 2019:2143