CVE Vulnerability

CVE-2021-37533

Prior to Apache Commons Net 3.9.0, Net's FTP client trusts the host from PASV response by default. A malicious server can redirect the Commons Net code to use a different host, but the user has to connect to the malicious server in the first place. This may lead to leakage of information about services running on the private network of the client. The default in version 3.9.0 is now false to ignore such hosts, as cURL does. See https://issues.apache.org/jira/browse/NET-711.

6.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://lists.apache.org/thread/o6yn9r9x6s94v97264hmgol1sf48mvx7 Issue Tracking Mailing List
http://www.openwall.com/lists/oss-security/2022/12/03/1 Issue Tracking Mailing List
https://lists.debian.org/debian-lts-announce/2022/12/msg00038.html Mailing List Third Party Advisory
https://www.debian.org/security/2022/dsa-5307 Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:apache:commons_net:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
Information

Published : 2022-12-03 03:15

Updated : 2023-01-10 07:29

NVD link : CVE-2021-37533

Mitre link : CVE-2021-37533

Products Affected
No products.
CWE
CWE-20