CVE-2019-20916 Information

Description

The pip package before 19.2 for Python allows Directory Traversal when a URL is given in an install command because a Content-Disposition header can have ../ in a filename as demonstrated by overwriting the /root/.ssh/authorized_keys file. This occurs in _download_http_url in _internal/download.py.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Reference

http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00005.html http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00010.html https://github.com/gzpan123/pip/commit/a4c735b14a62f9cb864533808ac63936704f2ace https://github.com/pypa/pip/compare/19.1.1…19.2 https://github.com/pypa/pip/issues/6413 https://lists.debian.org/debian-lts-announce/2020/09/msg00010.html The pip package before 19.2 for Python allows Directory Traversal when a URL is given in an install command because a Content-Disposition header can have ../ in a filename as demonstrated by overwriting the /root/.ssh/authorized_keys file. This occurs in downloadhttp_url in _internal/download.py.

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

7.5