PT-2021-10580 · Fusionpbx · Fusionpbx

Pierre Jourdan · Published 2021-05-20 · Updated 2021-05-25 · CVE-2020-21057

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: FusionPBX version 4.5.7

Description: A Directory Traversal issue allows a remote malicious user to delete folders on the system. This is achieved by exploiting the folder variable in the "/app/edit/folderdelete.php" endpoint.

Recommendations: For FusionPBX version 4.5.7, consider restricting access to the "/app/edit/folderdelete.php" endpoint until a patch is available. As a temporary workaround, avoid using the folder variable in this endpoint to minimize the risk of exploitation.

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2020-21057

Affected Products

Fusionpbx

References · 4

• https://github.com/fusionpbx/fusionpbx/commit/026c3958c3c7ca6b2ff067addc991aac8f41cf11 · Patch
• https://resp3ctblog.wordpress.com/2019/10/28/fusionpbx-path-traversal-4 · Patch
• https://osv.dev/vulnerability/CVE-2020-21057 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-21057 · Security Note