Detections
Analytics
Amazon Linux 2023 : amazon-cloudwatch-agent (ALAS2023-2025-1029)
medium Nessus Plugin ID 240325
Synopsis
The remote Amazon Linux 2023 host is missing a security update.Description
It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2025-1029 advisory.The tokenizer incorrectly interprets tags with unquoted attribute values that end with a solidus character (/) as self-closing. When directly using Tokenizer, this can result in such tags incorrectly being marked as self-closing, and when using the Parse functions, this can result in content following such tags as being placed in the wrong scope during DOM construction, but only when tags are in foreign content (e.g.
<math>, <svg>, etc contexts).
After analysis, we have determined that 2025-22872 do not pose a security risk to docker or containerd on Amazon Linux 2 or Amazon Linux 2023. Source code analysis using govulncheck has confirmed that these packages do not contain the vulnerable code. As a result, no security patches are required for these specific packages on AL2 and AL2023. (CVE-2025-22872)
Calling Verify with a VerifyOptions.KeyUsages that contains ExtKeyUsageAny unintentionally disabledpolicy validation. This only affected certificate chains which contain policy graphs, which are rather uncommon.
(CVE-2025-22874)
Proxy-Authorization and Proxy-Authenticate headers persisted on cross-origin redirects potentially leaking sensitive information. (CVE-2025-4673)
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 'dnf update amazon-cloudwatch-agent --releasever 2023.7.20250623' to update your system.See Also
https://alas.aws.amazon.com/AL2023/ALAS-2025-1029.html
https://alas.aws.amazon.com/cve/html/CVE-2025-22872.html
https://alas.aws.amazon.com/cve/html/CVE-2025-22874.html
Plugin Details
Severity: Medium
ID: 240325
File Name: al2023_ALAS2023-2025-1029.nasl
Version: 1.1
Type: local
Agent: unix
Published: 6/23/2025
Updated: 6/23/2025
Supported Sensors: Nessus Agent, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: High
Score: 7.1
CVSS v2
Risk Factor: High
Base Score: 7.8
Temporal Score: 5.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:C/A:N
CVSS Score Source: CVE-2025-22874
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
CVSS v4
Risk Factor: Medium
Base Score: 5.3
Threat Score: 1.3
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
CVSS Score Source: CVE-2025-22872
Vulnerability Information
CPE: p-cpe:/a:amazon:linux:amazon-cloudwatch-agent, cpe:/o:amazon:linux:2023
Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 6/23/2025
Vulnerability Publication Date: 3/27/2025
Reference Information
CVE: CVE-2025-22872, CVE-2025-22874, CVE-2025-4673
IAVB: 2025-B-0042-S