Detections
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Amazon Linux 2 : openwsman (ALAS-2020-1540)

high Nessus Plugin ID 141970

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Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

It is, therefore, affected by a vulnerability as referenced in the ALAS2-2020-1540 advisory.

 Openwsman, versions up to and including 2.6.9, are vulnerable to infinite loop in process_connection() when parsing specially crafted HTTP requests. A remote, unauthenticated attacker can exploit this vulnerability by sending malicious HTTP request to cause denial of service to openwsman server.
 (CVE-2019-3833)

Tenable has extracted the preceding description block directly from the tested product security advisory.

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

Solution

Run 'yum update openwsman' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2020-1540.html

https://access.redhat.com/security/cve/CVE-2019-3833

Plugin Details

Severity: High

ID: 141970

File Name: al2_ALAS-2020-1540.nasl

Version: 1.3

Type: local

Agent: unix

Published: 10/28/2020

Updated: 12/11/2024

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2019-3833

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:openwsman-server, p-cpe:/a:amazon:linux:openwsman-ruby, p-cpe:/a:amazon:linux:openwsman-client, p-cpe:/a:amazon:linux:openwsman-perl, p-cpe:/a:amazon:linux:libwsman1, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:libwsman-devel, p-cpe:/a:amazon:linux:openwsman-python, p-cpe:/a:amazon:linux:openwsman-debuginfo

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/22/2020

Vulnerability Publication Date: 3/12/2019

Reference Information

CVE: CVE-2019-3833

BID: 107367

ALAS: 2020-1540