Amazon Linux 2 : tomcat (ALAS-2025-2812)

critical Nessus Plugin ID 233710

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Synopsis

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

Description

The version of tomcat installed on the remote host is prior to 7.0.76-10. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2025-2812 advisory.

When serving resources from a network location using the NTFS file system, Apache Tomcat versions 10.0.0-M1 to 10.0.0-M9, 9.0.0.M1 to 9.0.39, 8.5.0 to 8.5.59 and 7.0.0 to 7.0.106 were susceptible to JSP source code disclosure in some configurations. The root cause was the unexpected behaviour of the JRE API File.getCanonicalPath() which in turn was caused by the inconsistent behaviour of the Windows API (FindFirstFileW) in some circumstances. (CVE-2021-24122)

Incomplete Cleanup vulnerability in Apache Tomcat. When recycling various internal objects in Apache Tomcat from 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.80 and from 8.5.0 through 8.5.93, an error could cause Tomcat to skip some parts of the recycling process leading to information leaking from the current request/response to the next. Users are recommended to upgrade to version 11.0.0-M12 onwards, 10.1.14 onwards, 9.0.81 onwards or 8.5.94 onwards, which fixes the issue.
(CVE-2023-42795)

Path Equivalence: 'file.Name' (Internal Dot) leading to Remote Code Execution and/or Information disclosure and/or malicious content added to uploaded files via write enabled Default Servlet in Apache Tomcat.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.2, from 10.1.0-M1 through 10.1.34, from 9.0.0.M1 through 9.0.98.

If all of the following were true, a malicious user was able to view security sensitive files and/or inject content into those files:- writes enabled for the default servlet (disabled by default)- support for partial PUT (enabled by default)- a target URL for security sensitive uploads that was a sub-directory of a target URL for public uploads- attacker knowledge of the names of security sensitive files being uploaded- the security sensitive files also being uploaded via partial PUT

If all of the following were true, a malicious user was able to perform remote code execution:- writes enabled for the default servlet (disabled by default)- support for partial PUT (enabled by default)- application was using Tomcat's file based session persistence with the default storage location- application included a library that may be leveraged in a deserialization attack

Users are recommended to upgrade to version 11.0.3, 10.1.35 or 9.0.98, which fixes the issue.

More justification and the patch links are available for all versions here:[1] https://tomcat.apache.org/security-11.html[2] https://tomcat.apache.org/security-10.html[3] https://tomcat.apache.org/security-9.html (CVE-2025-24813)

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

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

Solution

Run 'yum update tomcat' to update your system.

Plugin Details

Severity: Critical

ID: 233710

File Name: al2_ALAS-2025-2812.nasl

Version: 1.1

Type: local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 4/1/2025

Updated: 4/1/2025

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

Risk Information

VPR

Risk Factor: Critical

Score: 9.5

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.6

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

CVSS Score Source: CVE-2021-24122

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.1

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

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

CVSS Score Source: CVE-2025-24813

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:tomcat-javadoc, p-cpe:/a:amazon:linux:tomcat-lib, p-cpe:/a:amazon:linux:tomcat-webapps, p-cpe:/a:amazon:linux:tomcat-servlet-3.0-api, p-cpe:/a:amazon:linux:tomcat-jsp-2.2-api, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:tomcat-jsvc, p-cpe:/a:amazon:linux:tomcat-admin-webapps, p-cpe:/a:amazon:linux:tomcat-docs-webapp, p-cpe:/a:amazon:linux:tomcat-el-2.2-api, p-cpe:/a:amazon:linux:tomcat

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

Exploit Available: true

Exploit Ease: No known exploits are available

Patch Publication Date: 3/26/2025

Vulnerability Publication Date: 11/17/2020

CISA Known Exploited Vulnerability Due Dates: 4/22/2025

Reference Information

CVE: CVE-2021-24122, CVE-2023-42795, CVE-2025-24813

IAVA: 2020-A-0570-S, 2023-A-0534-S, 2025-A-0156

Detections

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