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CVE-2024-42365— Asterisk allows `Write=originate` as sufficient permissions for code execution / `System()` dialplan

Quick assessment

Affected
asterisk asterisk
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Asterisk是Asterisk开源的一款PBX系统的软件，运行在Linux系统上，支持使用SIP、IAX、H323协议进行IP通话。 Asterisk 存在安全漏洞，该漏洞源于具有 write=originate 的 AMI 用户可以更改 /etc/asterisk/ 目录中的所有配置文件。

CVSS 7.4 · High EPSS 4.67% · P91

Public Exploits 1

Metasploit · 1 asterisk_ami_originate_auth_rce.rb [exploit]
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I. Basic Information for CVE-2024-42365

Vulnerability Information
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Vulnerability Title
Asterisk allows `Write=originate` as sufficient permissions for code execution / `System()` dialplan
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
特权定义了不安全动作
Source: CVE Program / CVE List V5
Vulnerability Title
Asterisk 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Asterisk是Asterisk开源的一款PBX系统的软件，运行在Linux系统上，支持使用SIP、IAX、H323协议进行IP通话。 Asterisk 存在安全漏洞，该漏洞源于具有 write=originate 的 AMI 用户可以更改 /etc/asterisk/ 目录中的所有配置文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
asterisk asterisk < 18.24.2 -

II. Public POCs for CVE-2024-42365

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 7494 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
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Trigger conditions & impact
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Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2024-42365

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Patches & Fixes for CVE-2024-42365 (2)

Vendor Advisories for CVE-2024-42365 (1)

Other References for CVE-2024-42365 (2)

IV. Related Vulnerabilities

Same product: asterisk
Same vendor: asterisk
Same weakness: CWE-267

V. Comments for CVE-2024-42365

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