PT-2021-10578 · Fusionpbx · Fusionpbx

Pierre Jourdan · Published 2021-05-20 · Updated 2021-05-25 · CVE-2020-21055

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

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

Description: A Directory Traversal issue exists, allowing malicious users to rename any file on the system. This is achieved via the folder, filename, and newfilename variables in the appeditfilerename.php file.

Recommendations: For FusionPBX version 4.5.7, consider restricting access to the appeditfilerename.php file until a patch is available. As a temporary workaround, avoid using the folder, filename, and newfilename variables in the affected file to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2020-21055

Affected Products

Fusionpbx

References · 5

• https://github.com/fusionpbx/fusionpbx/commit/1a88ca61a744914d3336cc15a40fb3edbcde9085 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2020-21055 · Security Note
• https://osv.dev/vulnerability/CVE-2020-21055 · Vendor Advisory
• https://resp3ctblog.wordpress.com/2019/10/28/fusionpbx-path-traversal-6 · Note
• https://t.me/cvenotify/15030 · Telegram Post