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CVE-2021-37533

Published: 03/12/2022 Updated: 10/01/2023
CVSS v3 Base Score: 6.5 | Impact Score: 3.6 | Exploitability Score: 2.8
VMScore: 0

Vulnerability Summary

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 issues.apache.org/jira/browse/NET-711.

Vulnerability Trend

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apache commons net

debian debian linux 10.0

debian debian linux 11.0

Vendor Advisories

Synopsis Moderate: Red Hat Integration Camel Extensions for Quarkus 2133 security update Type/Severity Security Advisory: Moderate Topic Red Hat Integration Camel Extensions for Quarkus 2133 release and security update is now available The purpose of this text-only errata is to inform you about the security issues fixedRed Hat Product S ...
Debian Bug report logs - #1025910 libcommons-net-java: CVE-2021-37533 Package: src:libcommons-net-java; Maintainer for src:libcommons-net-java is Debian Java Maintainers <pkg-java-maintainers@listsaliothdebianorg>; Reported by: Salvatore Bonaccorso <carnil@debianorg> Date: Sun, 11 Dec 2022 20:06:02 UTC Severity: ...
ZeddYu Lu discovered that the FTP client of Apache Commons Net, a Java client API for basic Internet protocols, 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 a ...
DescriptionThe MITRE CVE dictionary describes this issue as: Prior to Apache Commons Net 390, 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 ...
Hitachi Infrastructure Analytics Advisor contains the following vulnerabilities: CVE-2019-10172, CVE-2019-10202, CVE-2021-37533 Hitachi Ops Center Analyzer contains the following vulnerabilities: CVE-2019-10172, CVE-2019-10202, CVE-2021-37533, CVE-2022-1471, CVE-2023-1370, CVE-2023-26048, CVE-2023-26049 Hitachi Ops Center Analyzer viewpoi ...

Github Repositories

Some utility classes for java (standard edition):

cumin cumin provides some utility classes for java (standard edition): Overview MapUtils - Simply creating maps ExceptionUtils - Get nice mini stacktrace, check for exception types in cause hierarchy ZipUtils - Write data or a string to a zip-file ReflectionUtils - Some reflections helper AnnotationUtils - Gets fields of a class annotated with a special annotation ObjectUtils

A modern sftp-client based on jsch

galangal galangal is a modern sftp-client based on jsch Documentation Browse the Javadoc of the latest version ('galangal' is well documented there) Installation <dependency> <groupId>netthk-systemsnetwork</groupId> <artifactId>galangal</artifactId> <version>143&