CVE-2019-14751

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.

CVSS v3.0 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

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

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:P/A:N

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://github.com/nltk/nltk/commit/f59d7ed8df2e0e957f7f247fe218032abdbe9a10	Patch
https://salvatoresecurity.com/zip-slip-in-nltk-cve-2019-14751/	Exploit Patch Third Party Advisory
https://github.com/nltk/nltk/blob/3.4.5/ChangeLog	Release Notes
https://github.com/mssalvatore/CVE-2019-14751_PoC	Exploit Patch Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZGZSSEJH7RHH3RBUEVWWYT75QU67J7SE/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QI4IJGLZQ5S7C5LNRNROHAO2P526XE3D/
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00054.html
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00001.html

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Configurations

Configuration 1 (hide)

cpe:2.3:a:nltk:nltk:*:*:*:*:*:*:*:*

Information

Published : 2019-08-22 09:15

Updated : 2020-03-27 03:15

NVD link : CVE-2019-14751

Mitre link : CVE-2019-14751

JSON object : View

CWE

CWE-22

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

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Products Affected

nltk

nltk

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