Amazon Linux 2 : mod_auth_mellon (ALAS-2023-2077)

medium Nessus Plugin ID 176918

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Synopsis

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

Description

The version of mod_auth_mellon installed on the remote host is prior to 0.14.0-9. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2023-2077 advisory.

- A flaw was found in mod_auth_mellon where it does not sanitize logout URLs properly. This issue could be used by an attacker to facilitate phishing attacks by tricking users into visiting a trusted web application URL that redirects to an external and potentially malicious server. The highest threat from this liability is to confidentiality and integrity. (CVE-2021-3639)

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 mod_auth_mellon' to update your system.

Plugin Details

Severity: Medium

ID: 176918

File Name: al2_ALAS-2023-2077.nasl

Version: 1.0

Type: local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 6/8/2023

Updated: 6/8/2023

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

Risk Information

VPR

Risk Factor: Low

Score: 3.0

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS Score Source: CVE-2021-3639

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:mod_auth_mellon-diagnostics, p-cpe:/a:amazon:linux:mod_auth_mellon, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:mod_auth_mellon-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: 6/5/2023

Vulnerability Publication Date: 12/17/2021

Reference Information

CVE: CVE-2021-3639

Detections

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