PT-2021-21654 · Nch · Nch Axon Pbx

Published 2021-07-25 · Updated 2021-08-06 · CVE-2021-37441

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 NCH Axon PBX versions 2.22 and earlier

Description The issue allows path traversal for file deletion via the logdelete API endpoint with the file parameter set to /... This enables unauthorized file deletion.

Recommendations For versions 2.22 and earlier, consider restricting access to the logdelete API endpoint until a patch is available. As a temporary workaround, avoid using the file parameter with the /.. substring in the logdelete API endpoint to minimize the risk of exploitation.

Exploit

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2021-37441

Affected Products

Nch Axon Pbx

References · 5

• 🔥 https://github.com/0xfml/poc/blob/main/NCH/Axon_2.22_LFI.md · Exploit
• https://osv.dev/vulnerability/CVE-2021-37441 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-37441 · Security Note
• https://t.me/cibsecurity/26457 · Telegram Post
• https://nch.com.au/pbx/index.html · Note