Vulnerability CVE-2021-42771
Published: 2021-10-20

Description:
Babel.Locale in Babel before 2.9.1 allows attackers to load arbitrary locale .dat files (containing serialized Python objects) via directory traversal, leading to code execution.

Type:

CWE-22

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

CVSS2 => (AV:L/AC:L/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.2/10
10/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Pocoo -> Babel 

 References:
https://www.tenable.com/security/research/tra-2021-14
https://lists.debian.org/debian-lts/2021/10/msg00040.html
https://github.com/python-babel/babel/pull/782
https://lists.debian.org/debian-lts-announce/2021/10/msg00018.html
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