Описание
The ftpcp() function in Lib/ftplib.py was not updated when CVE-2021-4189 was fixed. While makepasv() was patched to replace server-supplied PASV host addresses with the actual peer address (getpeername()[0]), ftpcp() still calls parse227() directly and passes the raw attacker-controllable IP address and port to target.sendport(). This patch is related to CVE-2021-4189.
Пакеты
| Пакет | Статус | Версия исправления | Релиз | Тип |
|---|---|---|---|---|
| python3.14 | fixed | 3.14.6-1 | package | |
| python3.13 | fixed | 3.13.14-1 | package | |
| python3.13 | fixed | 3.13.5-2+deb13u3 | trixie | package |
| python3.11 | removed | package | ||
| python3.11 | no-dsa | bookworm | package | |
| python3.9 | removed | package | ||
| python3.9 | postponed | bullseye | package | |
| python2.7 | removed | package | ||
| python2.7 | end-of-life | bullseye | package | |
| pypy3 | unfixed | package | ||
| pypy3 | no-dsa | trixie | package | |
| pypy3 | no-dsa | bookworm | package | |
| pypy3 | postponed | bullseye | package |
Примечания
https://mail.python.org/archives/list/security-announce@python.org/thread/ITF2BAPBQEPYK3LDMPRSY435JGNHYNDP/
https://github.com/python/cpython/pull/149648
https://github.com/python/cpython/commit/eac4fe3b2c77693790a5ef7dfab127c1fee81bf9 (main branch)
https://github.com/python/cpython/commit/bb3446dda6c49b32e67c11dbbbf221b40be00763 (3.13 branch)
Связанные уязвимости
The ftpcp() function in Lib/ftplib.py was not updated when CVE-2021-4189 was fixed. While makepasv() was patched to replace server-supplied PASV host addresses with the actual peer address (getpeername()[0]), ftpcp() still calls parse227() directly and passes the raw attacker-controllable IP address and port to target.sendport(). This patch is related to CVE-2021-4189.
The ftpcp() function in Lib/ftplib.py was not updated when CVE-2021-4189 was fixed. While makepasv() was patched to replace server-supplied PASV host addresses with the actual peer address (getpeername()[0]), ftpcp() still calls parse227() directly and passes the raw attacker-controllable IP address and port to target.sendport(). This patch is related to CVE-2021-4189.
FTP PASV SSRF, ftpcp() does not use actual peer address, trusts server-supplied PASV host address
The ftpcp() function in Lib/ftplib.py was not updated when CVE-2021-4189 was fixed. While makepasv() was patched to replace server-supplied PASV host addresses with the actual peer address (getpeername()[0]), ftpcp() still calls parse227() directly and passes the raw attacker-controllable IP address and port to target.sendport(). This patch is related to CVE-2021-4189.
