A flaw was found in Python, specifically in the FTP (File Transfer Protocol) client library in PASV (passive) mode.
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 3.6.14, 3.7.11, 3.8.9, 3.9.3, 3.10.1
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: yes
- Technical impact: partial
Summary
A flaw was found in Python, specifically in the FTP (File Transfer Protocol) client library in PASV (passive) mode. The issue is how the FTP client trusts the host from the PASV response by default. This flaw allows an attacker to set up a malicious FTP server that can trick FTP clients into connecting back to a given IP address and port. This vulnerability could lead to FTP client scanning ports, which otherwise would not have been possible.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: partial
- Record last updated
Affected versions
- n/a python
Fixed in python 3.6.14, python 3.7.11, python 3.8.9, python 3.9.3, python 3.10.0
- libpythonBitnami
From 3.6.0 · fixed in 3.6.14; From 3.7.0 · fixed in 3.7.11; From 3.8.0 · fixed in 3.8.9; From 3.9.0 · fixed in 3.9.3; From 3.10.0 · fixed in 3.10.1
- pythonBitnami
From 3.6.0 · fixed in 3.6.14; From 3.7.0 · fixed in 3.7.11; From 3.8.0 · fixed in 3.8.9; From 3.9.0 · fixed in 3.9.3; From 3.10.0 · fixed in 3.10.1
- python-minBitnami
From 3.6.0 · fixed in 3.6.14; From 3.7.0 · fixed in 3.7.11; From 3.8.0 · fixed in 3.8.9; From 3.9.0 · fixed in 3.9.3; From 3.10.0 · fixed in 3.10.1