CVE-2021-4189

MEDIUM5.3EPSS 1.1%

發布日:2022/8/24修改日:2026/4/28

描述

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.

受影響套件(6)

Bitnami/libpython>= 3.6.0, < 3.6.14, >= 3.7.0, < 3.7.11, >= 3.8.0, < 3.8.9, >= 3.9.0, < 3.9.3, >= 3.10.0, < 3.10.1
Bitnami/python>= 3.6.0, < 3.6.14, >= 3.7.0, < 3.7.11, >= 3.8.0, < 3.8.9, >= 3.9.0, < 3.9.3, >= 3.10.0, < 3.10.1
Bitnami/python-min>= 3.6.0, < 3.6.14, >= 3.7.0, < 3.7.11, >= 3.8.0, < 3.8.9, >= 3.9.0, < 3.9.3, >= 3.10.0, < 3.10.1
Debian/pypy3from 0, < 7.3.5+dfsg-2
Debian/python2.7from 0
Debian/python3.9from 0, < 3.9.2-1+deb11u2

CVSS 分數

來源	版本	嚴重程度	向量
osv	CVSS 3.1	MEDIUM5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

描述

受影響套件(6)

CVSS 分數

參考連結(11)