Insufficient verification of data authenticity in Apache Commons Net - CVE-2021-37533

 

Insufficient verification of data authenticity in Apache Commons Net - CVE-2021-37533

Published: December 20, 2022


Vulnerability identifier: #VU70441
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-37533
CWE-ID: CWE-345
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Apache Foundation
Affected software:
Apache Commons Net

Detailed vulnerability description

The vulnerability allows an attacker to redirect victim to a malicious host.

The vulnerability exists due to the application trusts the host from PASV response by default. A remote attacker can trick the victim into connecting to an attacker controlled FTP server and then redirect the application to another host.


How to mitigate CVE-2021-37533

Install updates from vendor's website.

Sources