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.

CVSS v3.0 6.5 MEDIUM

6.5^/10

CVSS v3.0 : MEDIUM

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 Vendor Advisory
http://www.openwall.com/lists/oss-security/2022/12/03/1	Issue Tracking Mailing List Third Party Advisory
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

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Configurations

Configuration 1 (hide)

cpe:2.3:a:apache:commons_net:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:10.0:::::::*
	cpe:2.3:o:debian:debian_linux:11.0:::::::*

Information

Published : 2022-12-03 07:15

Updated : 2023-01-10 11:29

NVD link : CVE-2021-37533

Mitre link : CVE-2021-37533

JSON object : View

CWE

CWE-20

Improper Input Validation

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Products Affected

debian

debian_linux

apache

commons_net

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