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Vulnerability record · CVE-2024-42365 · published 8 August 2024

CVE-2024-42365: Asterisk vulnerability

Asterisk · Asterisk

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.

8.8 CVSS 3.1 High EPSS 4.7% · top 8.6% CWE-267 · CWE-267CWE-1220 · CWE-1220
8.8CVSS 3.1 base score
4.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
9References, 1 tagged exploit
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/asterisk/asterisk/blob/14367caaf7241df1eceea7c45c5b261989c2c6db/main/manager.c#L6426 Issue Tracking
https://github.com/asterisk/asterisk/blob/7d28165cb1b2d02d66e8693bd3fe23ee72fc55d8/main/manager.c#L6426 Issue Tracking
https://github.com/asterisk/asterisk/commit/42a2f4ccfa2c7062a15063e765916b3332e34cc4 Patch
https://github.com/asterisk/asterisk/commit/7a0090325bfa9d778a39ae5f7d0a98109e4651c8 Patch
https://github.com/asterisk/asterisk/commit/b4063bf756272254b160b6d1bd6e9a3f8e16cc71 Patch
https://github.com/asterisk/asterisk/commit/bbe68db10ab8a80c29db383e4dfe14f6eafaf993 Patch
https://github.com/asterisk/asterisk/commit/faddd99f2b9408b524e5eb8a01589fe1fa282df2 Patch
https://github.com/asterisk/asterisk/security/advisories/GHSA-c4cg-9275-6w44 ExploitTechnical DescriptionVendor Advisory
https://lists.debian.org/debian-lts-announce/2024/10/msg00016.html

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2007-2488Asterisk vulnerabilityThe IAX2 channel driver (chan_iax2) in Asterisk before 20070504 does not properly null terminate data, which allows remote attackers to trigger loss …EPSS 4.3%9.8CVE-2022-23608Teluu pjsip use after free vulnerabilityPJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, S…EPSS 4.0%9.8CVE-2021-37706Teluu pjsip vulnerabilityPJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, S…EPSS 4.6%9.3CVE-2008-1390Asterisk vulnerabilityThe AsteriskGUI HTTP server in Asterisk Open Source 1.4.x before 1.4.19-rc3 and 1.6.x before 1.6.0-beta6, Business Edition C.x.x before C.1.6, Asteri…EPSS 3.8%9.3CVE-2007-3762Asterisk vulnerabilityStack-based buffer overflow in the IAX2 channel driver (chan_iax2) in Asterisk before 1.2.22 and 1.4.x before 1.4.8, Business Edition before B.2.2.1,…EPSS 5.5%9.1CVE-2022-21723Teluu pjsip out-of-bounds read vulnerabilityPJSIP is a free and open source multimedia communication library written in C language implementing standard based protocols such as SIP, SDP, RTP, S…EPSS 4.5%9.0CVE-2012-2186Asterisk open source vulnerabilityIncomplete blacklist vulnerability in main/manager.c in Asterisk Open Source 1.8.x before 1.8.15.1 and 10.x before 10.7.1, Certified Asterisk 1.8.11 …EPSS 3.6%8.8CVE-2008-1332Asterisk permissions and access controls vulnerabilityUnspecified vulnerability in Asterisk Open Source 1.2.x before 1.2.27, 1.4.x before 1.4.18.1 and 1.4.19-rc3; Business Edition A.x.x, B.x.x before B.2…EPSS 2.3%

Source: NIST National Vulnerability Database (record CVE-2024-42365), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.