CVE-2019-14751

Published: Aug 22, 2019Modified: Nov 21, 2024

7.5

Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Exploitability: 3.9 / Impact: 3.6

Source: NVD

Description

NLTK Downloader before 3.4.5 is vulnerable to a directory traversal, allowing attackers to write arbitrary files via a ../ (dot dot slash) in an NLTK package (ZIP archive) that is mishandled during extraction.

Affected (1)

Products: Nltk: Nltk

Nltk

1 product

Nltk

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Nltk Nltk	Before 3.4.5

Related CWEs

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

References (16)

http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00054.html

Source: cve@mitre.org

http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00001.html

Source: cve@mitre.org

https://github.com/mssalvatore/CVE-2019-14751_PoC

Source: cve@mitre.org

ExploitPatchThird Party Advisory

https://github.com/nltk/nltk/blob/3.4.5/ChangeLog

Source: cve@mitre.org

Release Notes

https://github.com/nltk/nltk/commit/f59d7ed8df2e0e957f7f247fe218032abdbe9a10

Source: cve@mitre.org

Patch

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QI4IJGLZQ5S7C5LNRNROHAO2P526XE3D/

Source: cve@mitre.org

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZGZSSEJH7RHH3RBUEVWWYT75QU67J7SE/

Source: cve@mitre.org

https://salvatoresecurity.com/zip-slip-in-nltk-cve-2019-14751/

Source: cve@mitre.org

ExploitPatchThird Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00054.html