PT-2021-21653 · Nch · Nch Axon Pbx

Published 2021-07-25 · Updated 2021-08-05 · CVE-2021-37440

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions NCH Axon PBX versions 2.22 and earlier

Description The issue allows path traversal for file disclosure via the logprop?file=/.. substring. This enables unauthorized access to files on the system.

Recommendations For NCH Axon PBX versions 2.22 and earlier, consider restricting access to the logprop API endpoint until a patch is available. As a temporary workaround, avoid using the file parameter in the logprop endpoint to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2021-37440

Affected Products

Nch Axon Pbx

References · 5

• 🔥 https://github.com/0xfml/poc/blob/main/NCH/Axon_2.22_LFI.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-37440 · Security Note
• https://osv.dev/vulnerability/CVE-2021-37440 · Vendor Advisory
• https://t.me/cibsecurity/26460 · Telegram Post
• https://nch.com.au/pbx/index.html · Note