PT-2021-23833 · Fusionpbx · Fusionpbx

Published 2021-11-05 · Updated 2023-08-08 · CVE-2021-43405

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions FusionPBX versions prior to 4.5.30

Description An issue was discovered where the fax extension may have risky characters because it is not constrained to be numeric.

Recommendations For versions prior to 4.5.30, update to version 4.5.30 or later to resolve the issue. As a temporary workaround, consider restricting the fax extension to numeric characters to minimize the risk of exploitation.

Exploit

Fix

Related Identifiers

CVE-2021-43405

Affected Products

Fusionpbx

References · 6

• 🔥 https://exploit-db.com/exploits/50505 · Exploit
• 🔥 http://packetstormsecurity.com/files/164795/FusionPBX-4.5.29-Remote-Code-Execution.html · Exploit
• https://github.com/fusionpbx/fusionpbx/commit/2d2869c1a1e874c46a8c3c5475614ce769bbbd59 · Patch
• https://osv.dev/vulnerability/CVE-2021-43405 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-43405 · Security Note
• https://t.me/cibsecurity/31916 · Telegram Post