Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

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.

Published

2022-12-03T15:15:09.747

Last Modified

2025-04-24T16:15:18.227

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.5 (MEDIUM)

Weaknesses

Type: Primary
CWE-20

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	apache	commons_net	< 3.9.0	Yes
Operating System	debian	debian_linux	10.0	Yes
Operating System	debian	debian_linux	11.0	Yes

References

http://www.openwall.com/lists/oss-security/2022/12/03/1 Issue Tracking, Mailing List, Third Party Advisory ([email protected])
https://lists.apache.org/thread/o6yn9r9x6s94v97264hmgol1sf48mvx7 Issue Tracking, Mailing List, Vendor Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2022/12/msg00038.html Mailing List, Third Party Advisory ([email protected])
https://www.debian.org/security/2022/dsa-5307 Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2022/12/03/1 Issue Tracking, Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.apache.org/thread/o6yn9r9x6s94v97264hmgol1sf48mvx7 Issue Tracking, Mailing List, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2022/12/msg00038.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.debian.org/security/2022/dsa-5307 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)