| Bug ID | 1206018 |
|---|---|
| Summary | VUL-0: CVE-2021-37533: apache-commons-net: FTP client trusts the host from PASV response by default |
| Classification | openSUSE |
| Product | openSUSE Distribution |
| Version | Leap 15.4 |
| Hardware | Other |
| URL | https://smash.suse.de/issue/349715/ |
| OS | Other |
| Status | NEW |
| Severity | Normal |
| Priority | P5 - None |
| Component | Security |
| Assignee | fstrba@suse.com |
| Reporter | thomas.leroy@suse.com |
| QA Contact | security-team@suse.de |
| Found By | Security Response Team |
| Blocker | --- |
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. Upstream fix: https://github.com/apache/commons-net/commit/b0bff89f70cfea70009e22f87639816cc3993974 References: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-37533 https://seclists.org/oss-sec/2022/q4/167 http://www.openwall.com/lists/oss-security/2022/12/03/1 https://www.cve.org/CVERecord?id=CVE-2021-37533 http://www.cvedetails.com/cve/CVE-2021-37533/ https://lists.apache.org/thread/o6yn9r9x6s94v97264hmgol1sf48mvx7