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CVE-2024-42365

7.4 · HIGH

Asterisk is an open source private branch exchange (PBX) and telephony toolkit.

Published Aug 8, 2024CWE-267EPSS 4.67%

Overview

CVE-2024-42365 is a high-severity vulnerability. It was published on August 8, 2024 and has a CVSS 3.1 base score of 7.4 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.4, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Asterisk is an open source private branch exchange (PBX) and telephony toolkit. Prior to asterisk versions 18.24.2, 20.9.2, and 21.4.2 and certified-asterisk versions 18.9-cert11 and 20.7-cert2, an AMI user with `write=originate` may change all configuration files in the `/etc/asterisk/` directory. This occurs because they are able to curl remote files and write them to disk, but are also able to append to existing files using the `FILE` function inside the `SET` application. This issue may result in privilege escalation, remote code execution and/or blind server-side request forgery with arbitrary protocol. Asterisk versions 18.24.2, 20.9.2, and 21.4.2 and certified-asterisk versions 18.9-cert11 and 20.7-cert2 contain a fix for this issue.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/asterisk/asterisk/blob/14367caaf7241df1eceea7c45c5b261989c2c6db/main/manager.c#L6426GitHubgithub.com/asterisk/asterisk/blob/7d28165cb1b2d02d66e8693bd3fe23ee72fc55d8/main/manager.c#L6426GitHubgithub.com/asterisk/asterisk/commit/42a2f4ccfa2c7062a15063e765916b3332e34cc4GitHubgithub.com/asterisk/asterisk/commit/7a0090325bfa9d778a39ae5f7d0a98109e4651c8GitHubgithub.com/asterisk/asterisk/commit/b4063bf756272254b160b6d1bd6e9a3f8e16cc71GitHubgithub.com/asterisk/asterisk/commit/bbe68db10ab8a80c29db383e4dfe14f6eafaf993GitHubgithub.com/asterisk/asterisk/commit/faddd99f2b9408b524e5eb8a01589fe1fa282df2GitHubgithub.com/asterisk/asterisk/security/advisories/GHSA-c4cg-9275-6w44Reflists.debian.org/debian-lts-announce/2024/10/msg00016.html

How CyberStrike helps

Frequently asked questions

What is CVE-2024-42365?

CVE-2024-42365 is a high-severity vulnerability. It was published on August 8, 2024 and has a CVSS 3.1 base score of 7.4 (HIGH).

How severe is CVE-2024-42365?

This vulnerability has a CVSS 3.1 base score of 7.4, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-42365?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-42365?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-42365 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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