Input validation error in Python - CVE-2023-27043

 

Input validation error in Python - CVE-2023-27043

Published: November 10, 2023


Vulnerability identifier: #VU82980
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2023-27043
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Python.org
Affected software:
Python

Detailed vulnerability description

The vulnerability allows a remote attacker to bypass filtration.

The vulnerability exists due to insufficient validation of user-supplied input when parsing email address with a special character. A remote attacker can bypass a protection mechanism in which application access is granted only after verifying receipt of e-mail to a specific domain.


How to mitigate CVE-2023-27043

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Sources