PT-2023-20732 · Digium+3 · Asterisk+3

Vasilis Sikkis · Published 2023-04-26 · Updated 2023-05-05 · CVE-2023-26567

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Sangoma FreePBX versions 1805 through 2302

Description The issue exposes cleartext authentication credentials for the Asterisk Database (MariaDB/MySQL) and Asterisk Manager Interface by placing AMPDBUSER, AMPDBPASS, AMPMGRUSER, and AMPMGRPASS in the list of global variables. An attacker can exploit this by making a "/ari/asterisk/variable?variable=AMPDBPASS" API call.

Recommendations For Sangoma FreePBX versions 1805 through 2302, consider restricting access to the /ari/asterisk/variable API endpoint to minimize the risk of exploitation. Additionally, avoid using the variables AMPDBUSER, AMPDBPASS, AMPMGRUSER, and AMPMGRPASS in global variables until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Insufficiently Protected Credentials

Weakness Enumeration

CWE-522

Related Identifiers

CVE-2023-26567

Affected Products

Asterisk

Mariadb

Mysql Server

Sangoma Freepbx

References · 8

• https://osv.dev/vulnerability/CVE-2023-26567 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-26567 · Security Note
• https://qsecure.com.cy/resources/advisories/sangoma-freepbx-linux-insecure-permissions · Note
• https://t.me/cvenotify/49127 · Telegram Post
• https://freepbx.org · Note
• https://sangoma.com/products/open-source · Note
• https://t.me/cibsecurity/62943 · Telegram Post
• https://t.me/cvenotify/49861 · Telegram Post