A dependency confusion vulnerability was reported in the Antilles open-source software prior to version 1.0.1 that could allow for remote code execution during installation due to a package listed in requirements.txt not existing in the public package index (PyPi). MITRE classifies this weakness as an Uncontrolled Search Path Element (CWE-427) in which a private package dependency may be replaced by an unauthorized package of the same name published to a well-known public repository such as PyPi. The configuration has been updated to only install components built by Antilles, removing all other public package indexes. Additionally, the antilles-tools dependency has been published to PyPi.
Published 2021-11-12 22:15:09
Updated 2021-11-17 14:30:33
View at NVD,   CVE.org
Vulnerability category: Execute code

Exploit prediction scoring system (EPSS) score for CVE-2021-3840

0.53%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 77 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-3840

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.8
MEDIUM AV:N/AC:M/Au:N/C:P/I:P/A:P
8.6
6.4
NIST
8.8
HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
2.8
5.9
NIST
8.8
HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
2.8
5.9
Lenovo Group Ltd.

CWE ids for CVE-2021-3840

  • The product uses a fixed or controlled search path to find resources, but one or more locations in that path can be under the control of unintended actors.
    Assigned by:
    • nvd@nist.gov (Primary)
    • psirt@lenovo.com (Secondary)

References for CVE-2021-3840

Products affected by CVE-2021-3840

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