Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2024-42365

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
08/08/2024
Last modified:
03/11/2025

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.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L CVSS v3.1 Severity and Metrics:

Base Score: 7.40 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): Low
Integrity (I): Low
Availability (A): Low

Base Score 3.x
7.40
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:asterisk:asterisk:*:*:*:*:*:*:*:* 18.24.2 (excluding)
cpe:2.3:a:asterisk:asterisk:*:*:*:*:*:*:*:* 19.0.0 (including) 20.9.1 (excluding)
cpe:2.3:a:asterisk:asterisk:21.4.0:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:certified_asterisk:13.13.0:*:*:*:*:*:*:*
cpe:2.3:a:asterisk:certified_asterisk:13.13.0:cert1:*:*:*:*:*:*
cpe:2.3:a:asterisk:certified_asterisk:13.13.0:cert1-rc1:*:*:*:*:*:*
cpe:2.3:a:asterisk:certified_asterisk:13.13.0:cert1-rc2:*:*:*:*:*:*
cpe:2.3:a:asterisk:certified_asterisk:13.13.0:cert1-rc3:*:*:*:*:*:*
cpe:2.3:a:asterisk:certified_asterisk:13.13.0:cert1-rc4:*:*:*:*:*:*
cpe:2.3:a:asterisk:certified_asterisk:13.13.0:cert2:*:*:*:*:*:*
cpe:2.3:a:asterisk:certified_asterisk:13.13.0:cert3:*:*:*:*:*:*
cpe:2.3:a:asterisk:certified_asterisk:13.13.0:rc1:*:*:*:*:*:*
cpe:2.3:a:asterisk:certified_asterisk:13.13.0:rc2:*:*:*:*:*:*
cpe:2.3:a:asterisk:certified_asterisk:16.8:cert1-rc1:*:*:*:*:*:*
cpe:2.3:a:asterisk:certified_asterisk:16.8:cert1-rc2:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools