// For flags

CVE-2025-47780

cli_permissions.conf: deny option does not work for disallowing shell commands

Severity Score

4.8
*CVSS v4

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track*
*SSVC
Descriptions

Asterisk is an open-source private branch exchange (PBX). Prior to versions 18.26.2, 20.14.1, 21.9.1, and 22.4.1 of Asterisk and versions 18.9-cert14 and 20.7-cert5 of certified-asterisk, trying to disallow shell commands to be run via the Asterisk command line interface (CLI) by configuring `cli_permissions.conf` (e.g. with the config line `deny=!*`) does not work which could lead to a security risk. If an administrator running an Asterisk instance relies on the `cli_permissions.conf` file to work and expects it to deny all attempts to execute shell commands, then this could lead to a security vulnerability. Versions 18.26.2, 20.14.1, 21.9.1, and 22.4.1 of Asterisk and versions 18.9-cert14 and 20.7-cert5 of certified-asterisk fix the issue.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
System
Vulnerable | Subsequent
Confidentiality
Low
None
Integrity
Low
None
Availability
Low
None
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Track*
Exploitation
Poc
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2025-05-09 CVE Reserved
  • 2025-05-22 CVE Published
  • 2025-05-22 CVE Updated
  • 2025-06-23 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CAPEC
References (1)
URL Tag Source
https://github.com/asterisk/asterisk/security/advisories/GHSA-c7p6-7mvq-8jq2 X_refsource_confirm
URL Date SRC
URL Date SRC
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Asterisk
Search vendor "Asterisk"
 Asterisk
Search vendor "Asterisk" for product "Asterisk"
 < 18.9
Search vendor "Asterisk" for product "Asterisk" and version " < 18.9"
en
Affected
Asterisk
Search vendor "Asterisk"
 Asterisk
Search vendor "Asterisk" for product "Asterisk"
 >= 18.10.0 < 18.26.2
Search vendor "Asterisk" for product "Asterisk" and version " >= 18.10.0 < 18.26.2"
en
Affected
Asterisk
Search vendor "Asterisk"
 Asterisk
Search vendor "Asterisk" for product "Asterisk"
 >= 20.0 < 20.7
Search vendor "Asterisk" for product "Asterisk" and version " >= 20.0 < 20.7"
en
Affected
Asterisk
Search vendor "Asterisk"
 Asterisk
Search vendor "Asterisk" for product "Asterisk"
 >= 20.8.0 < 20.14.1
Search vendor "Asterisk" for product "Asterisk" and version " >= 20.8.0 < 20.14.1"
en
Affected
Asterisk
Search vendor "Asterisk"
 Asterisk
Search vendor "Asterisk" for product "Asterisk"
 >= 21.0.0 < 21.9.1
Search vendor "Asterisk" for product "Asterisk" and version " >= 21.0.0 < 21.9.1"
en
Affected
Asterisk
Search vendor "Asterisk"
 Asterisk
Search vendor "Asterisk" for product "Asterisk"
 >= 22.0.0 < 22.4.1
Search vendor "Asterisk" for product "Asterisk" and version " >= 22.0.0 < 22.4.1"
en
Affected