Detections
Analytics

Amazon Linux 2 : xstream (ALAS-2021-1593)

high Nessus Plugin ID 145450

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Synopsis

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

Description

The version of xstream installed on the remote host is prior to 1.3.1-12. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2021-1593 advisory.

 A flaw was found in xstream. An unsafe deserialization of user-supplied XML, in conjunction with relying on the default deny list, allows a remote attacker to perform a variety of attacks including a remote code execution of arbitrary code in the context of the JVM running the XStream application. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
 (CVE-2020-26217)

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 xstream' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2021-1593.html

https://access.redhat.com/security/cve/CVE-2020-26217

Plugin Details

Severity: High

ID: 145450

File Name: al2_ALAS-2021-1593.nasl

Version: 1.5

Type: local

Agent: unix

Published: 1/26/2021

Updated: 12/11/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 9.3

Temporal Score: 7.3

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

CVSS Score Source: CVE-2020-26217

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:L/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:amazon:linux:xstream, p-cpe:/a:amazon:linux:xstream-javadoc, cpe:/o:amazon:linux:2

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/25/2021

Vulnerability Publication Date: 11/16/2020

Reference Information

CVE: CVE-2020-26217

ALAS: 2021-1593