CVE-2019-20916: Improper Limitation of a Pathname to a Restricted Directory
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.
References
- lists.opensuse.org/opensuse-security-announce/2020-10/msg00005.html
- lists.opensuse.org/opensuse-security-announce/2020-10/msg00010.html
- github.com/advisories/GHSA-gpvv-69j7-gwj8
- github.com/gzpan123/pip/commit/a4c735b14a62f9cb864533808ac63936704f2ace
- github.com/pypa/pip/compare/19.1.1...19.2
- github.com/pypa/pip/issues/6413
- lists.debian.org/debian-lts-announce/2020/09/msg00010.html
- nvd.nist.gov/vuln/detail/CVE-2019-20916
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