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Amazon Linux AMI : ruby24 (ALAS-2020-1451)

high Nessus Plugin ID 142979

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Synopsis

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

Description

The version of ruby24 installed on the remote host is prior to 2.4.10-2.13. It is, therefore, affected by a vulnerability as referenced in the ALAS-2020-1451 advisory.

 An issue was discovered in Ruby through 2.5.8, 2.6.x through 2.6.6, and 2.7.x through 2.7.1. WEBrick, a simple HTTP server bundled with Ruby, had not checked the transfer-encoding header value rigorously. An attacker may potentially exploit this issue to bypass a reverse proxy (which also has a poor header check), which may lead to an HTTP Request Smuggling attack. (CVE-2020-25613)

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 ruby24' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2020-1451.html

https://access.redhat.com/security/cve/CVE-2020-25613

Plugin Details

Severity: High

ID: 142979

File Name: ala_ALAS-2020-1451.nasl

Version: 1.3

Type: local

Agent: unix

Published: 11/18/2020

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:P/A:N

CVSS Score Source: CVE-2020-25613

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:H/A:N

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:ruby24, p-cpe:/a:amazon:linux:rubygem24-did_you_mean, cpe:/o:amazon:linux, p-cpe:/a:amazon:linux:rubygem24-test-unit, p-cpe:/a:amazon:linux:rubygem24-json, p-cpe:/a:amazon:linux:rubygem24-minitest5, p-cpe:/a:amazon:linux:rubygem24-power_assert, p-cpe:/a:amazon:linux:rubygem24-io-console, p-cpe:/a:amazon:linux:ruby24-doc, p-cpe:/a:amazon:linux:rubygem24-xmlrpc, p-cpe:/a:amazon:linux:ruby24-libs, p-cpe:/a:amazon:linux:rubygems24, p-cpe:/a:amazon:linux:ruby24-irb, p-cpe:/a:amazon:linux:rubygems24-devel, p-cpe:/a:amazon:linux:rubygem24-rdoc, p-cpe:/a:amazon:linux:rubygem24-net-telnet, p-cpe:/a:amazon:linux:rubygem24-bigdecimal, p-cpe:/a:amazon:linux:ruby24-devel, p-cpe:/a:amazon:linux:rubygem24-psych, p-cpe:/a:amazon:linux:ruby24-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: 11/14/2020

Vulnerability Publication Date: 10/6/2020

Reference Information

CVE: CVE-2020-25613

ALAS: 2020-1451