Amazon Linux 2 : xstream (ALAS-2021-1729)

high Nessus Plugin ID 155989

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 1.3.1-16. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2021-1729 advisory.

- XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker to load and execute arbitrary code from a remote host only by manipulating the processed input stream. A user is only affected if using the version out of the box with JDK 1.7u21 or below. However, this scenario can be adjusted easily to an external Xalan that works regardless of the version of the Java runtime. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose. (CVE-2021-39139)

- XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker to allocate 100% CPU time on the target system depending on CPU type or parallel execution of such a payload resulting in a denial of service only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose. (CVE-2021-39140)

- XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker to load and execute arbitrary code from a remote host only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose. (CVE-2021-39141, CVE-2021-39145, CVE-2021-39146, CVE-2021-39147, CVE-2021-39148, CVE-2021-39149, CVE-2021-39151, CVE-2021-39154)

- XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker has sufficient rights to execute commands of the host only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose. (CVE-2021-39144)

- XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker to request data from internal resources that are not publicly available only by manipulating the processed input stream with a Java runtime version 14 to 8. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. If you rely on XStream's default blacklist of the [Security Framework](https://x-stream.github.io/security.html#framework), you will have to use at least version 1.4.18. (CVE-2021-39150, CVE-2021-39152)

- XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker to load and execute arbitrary code from a remote host only by manipulating the processed input stream, if using the version out of the box with Java runtime version 14 to 8 or with JavaFX installed. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose. (CVE-2021-39153)

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-2021-1729.html

https://access.redhat.com/security/cve/CVE-2021-39139

https://access.redhat.com/security/cve/CVE-2021-39140

https://access.redhat.com/security/cve/CVE-2021-39141

https://access.redhat.com/security/cve/CVE-2021-39144

https://access.redhat.com/security/cve/CVE-2021-39145

https://access.redhat.com/security/cve/CVE-2021-39146

https://access.redhat.com/security/cve/CVE-2021-39147

https://access.redhat.com/security/cve/CVE-2021-39148

https://access.redhat.com/security/cve/CVE-2021-39149

https://access.redhat.com/security/cve/CVE-2021-39150

https://access.redhat.com/security/cve/CVE-2021-39151

https://access.redhat.com/security/cve/CVE-2021-39152

https://access.redhat.com/security/cve/CVE-2021-39153

https://access.redhat.com/security/cve/CVE-2021-39154

Plugin Details

Severity: High

ID: 155989

File Name: al2_ALAS-2021-1729.nasl

Version: 1.2

Type: local

Agent: unix

Published: 12/10/2021

Updated: 12/10/2021

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

Risk Information

CVSS Score Source: CVE-2021-39139

VPR

Risk Factor: High

Score: 7.3

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 4.8

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

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

Temporal Vector: E:U/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 Ease: No known exploits are available

Patch Publication Date: 12/8/2021

Vulnerability Publication Date: 8/23/2021

Reference Information

CVE: CVE-2021-39139, CVE-2021-39140, CVE-2021-39141, CVE-2021-39144, CVE-2021-39145, CVE-2021-39146, CVE-2021-39147, CVE-2021-39148, CVE-2021-39149, CVE-2021-39150, CVE-2021-39151, CVE-2021-39152, CVE-2021-39153, CVE-2021-39154

ALAS: 2021-1729