#VU61675 CRLF injection in Python - CVE-2022-0391
Published: March 29, 2022
Vulnerability identifier: #VU61675
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2022-0391
CWE-ID: CWE-93
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Python
Python
Software vendor:
Python.org
Python.org
Description
The vulnerability allows a remote attacker to inject arbitrary data in server response.
The vulnerability exists due to insufficient validation of attacker-supplied data within the urllib.parse module in Python. A remote attacker can pass specially crafted data to the application containing CR-LF characters and modify application behavior.
Remediation
Install updates from vendor's website.
External links
- https://bugs.python.org/issue43882
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CSD2YBXP3ZF44E44QMIIAR5VTO35KTRB/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UDBDBAU6HUPZHISBOARTXZ5GKHF2VH5U/
- https://security.netapp.com/advisory/ntap-20220225-0009/