CVE-2025-47779
Using malformed From header can forge identity with ";" or NULL in name portion
Description
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, SIP requests of the type MESSAGE (RFC 3428) authentication do not get proper alignment. An authenticated attacker can spoof any user identity to send spam messages to the user with their authorization token. Abuse of this security issue allows authenticated attackers to send fake chat messages can be spoofed to appear to come from trusted entities. Even administrators who follow Security best practices and Security Considerations can be impacted. Therefore, abuse can lead to spam and enable social engineering, phishing and similar attacks. 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.
INFO
Published Date :
May 22, 2025, 5:15 p.m.
Last Modified :
May 23, 2025, 3:55 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update Asterisk to 18.26.2 or later.
- Update Asterisk to 20.14.1 or later.
- Update Asterisk to 21.9.1 or later.
- Update Asterisk to 22.4.1 or later.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-47779.
| URL | Resource |
|---|---|
| https://github.com/asterisk/asterisk/blob/master/configs/samples/pjsip.conf.sample | |
| https://github.com/asterisk/asterisk/security/advisories/GHSA-2grh-7mhv-fcfw |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-47779 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-47779
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-47779 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-47779 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Aug. 25, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N Added CPE Configuration OR *cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:* versions up to (excluding) 18.26.2 *cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:* versions from (including) 20.0.0 up to (excluding) 20.14.1 *cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:* versions from (including) 21.0.0 up to (excluding) 21.9.1 *cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:* versions from (including) 22.0.0 up to (excluding) 22.4.1 Added CPE Configuration OR *cpe:2.3:a:sangoma:certified_asterisk:18.9:cert2:*:*:*:*:*:* *cpe:2.3:a:sangoma:certified_asterisk:18.9:cert1:*:*:*:*:*:* *cpe:2.3:a:sangoma:certified_asterisk:*:*:*:*:*:*:*:* versions up to (excluding) 18.9 *cpe:2.3:a:sangoma:certified_asterisk:18.9:cert3:*:*:*:*:*:* *cpe:2.3:a:sangoma:certified_asterisk:18.9:cert4:*:*:*:*:*:* *cpe:2.3:a:sangoma:certified_asterisk:18.9:cert5:*:*:*:*:*:* *cpe:2.3:a:sangoma:certified_asterisk:18.9:-:*:*:*:*:*:* *cpe:2.3:a:sangoma:certified_asterisk:18.9:cert10:*:*:*:*:*:* *cpe:2.3:a:sangoma:certified_asterisk:18.9:cert11:*:*:*:*:*:* *cpe:2.3:a:sangoma:certified_asterisk:18.9:cert12:*:*:*:*:*:* *cpe:2.3:a:sangoma:certified_asterisk:18.9:cert13:*:*:*:*:*:* *cpe:2.3:a:sangoma:certified_asterisk:18.9:cert1-rc1:*:*:*:*:*:* *cpe:2.3:a:sangoma:certified_asterisk:18.9:cert6:*:*:*:*:*:* *cpe:2.3:a:sangoma:certified_asterisk:18.9:cert7:*:*:*:*:*:* *cpe:2.3:a:sangoma:certified_asterisk:18.9:cert8:*:*:*:*:*:* *cpe:2.3:a:sangoma:certified_asterisk:18.9:cert8-rc1:*:*:*:*:*:* *cpe:2.3:a:sangoma:certified_asterisk:18.9:cert8-rc2:*:*:*:*:*:* *cpe:2.3:a:sangoma:certified_asterisk:18.9:cert9:*:*:*:*:*:* *cpe:2.3:a:sangoma:certified_asterisk:20.7:cert1:*:*:*:*:*:* *cpe:2.3:a:sangoma:certified_asterisk:20.7:cert1-rc1:*:*:*:*:*:* *cpe:2.3:a:sangoma:certified_asterisk:20.7:cert1-rc2:*:*:*:*:*:* *cpe:2.3:a:sangoma:certified_asterisk:20.7:cert2:*:*:*:*:*:* *cpe:2.3:a:sangoma:certified_asterisk:20.7:cert3:*:*:*:*:*:* *cpe:2.3:a:sangoma:certified_asterisk:20.7:cert4:*:*:*:*:*:* Added Reference Type GitHub, Inc.: https://github.com/asterisk/asterisk/blob/master/configs/samples/pjsip.conf.sample Types: Product Added Reference Type GitHub, Inc.: https://github.com/asterisk/asterisk/security/advisories/GHSA-2grh-7mhv-fcfw Types: Exploit, Vendor Advisory -
New CVE Received by [email protected]
May. 22, 2025
Action Type Old Value New Value Added Description 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, SIP requests of the type MESSAGE (RFC 3428) authentication do not get proper alignment. An authenticated attacker can spoof any user identity to send spam messages to the user with their authorization token. Abuse of this security issue allows authenticated attackers to send fake chat messages can be spoofed to appear to come from trusted entities. Even administrators who follow Security best practices and Security Considerations can be impacted. Therefore, abuse can lead to spam and enable social engineering, phishing and similar attacks. 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. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N Added CWE CWE-140 Added CWE CWE-792 Added Reference https://github.com/asterisk/asterisk/blob/master/configs/samples/pjsip.conf.sample Added Reference https://github.com/asterisk/asterisk/security/advisories/GHSA-2grh-7mhv-fcfw