High severity · published Aug 22, 2019
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…
7.5
CVSS
5.7%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)5.7% · higher than 93% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NL
Nltk · Nltk
before 3.4.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-14751
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-14751
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00054.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00001.html
Exploit
https://github.com/mssalvatore/CVE-2019-14751_PoC
Release Notes
https://github.com/nltk/nltk/blob/3.4.5/ChangeLog
Patch
https://github.com/nltk/nltk/commit/f59d7ed8df2e0e957f7f247fe218032abdbe9a10
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QI4IJGLZQ5S7C5LNRNROHAO2P526XE3D/
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