PT-2020-15499 · Pnotes.Net · Pnotes.Net

Anandjons · Published 2020-08-14 · Updated 2020-08-21 · CVE-2020-22721

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions PNotes.NET version 3.8.1.2

Description A file upload issue allows a local attacker to execute arbitrary code by uploading a malicious .exe file to the external program. This is related to the Miscellaneous "External Programs" feature.

Recommendations For PNotes.NET version 3.8.1.2, consider disabling the Miscellaneous "External Programs" feature until a patch is available to prevent exploitation. Restrict access to uploading files to minimize the risk of arbitrary code execution.

Exploit

Fix

Unrestricted File Upload

Weakness Enumeration

CWE-434

Related Identifiers

CVE-2020-22721

Affected Products

Pnotes.Net

References · 3

• 🔥 https://syhack.wordpress.com/2020/04/18/pnotes-insecure-file-upload-vulnerability-code-execution · Exploit
• https://osv.dev/vulnerability/CVE-2020-22721 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-22721 · Security Note