CVE-2021-3840: Antilles tools Antilles Dependency Confusion Vulnerability Vulnerability
HIGHCVE-2021-3840 is a HIGH (CVSS 8.8) antilles dependency confusion vulnerability vulnerability (CWE-427: Uncontrolled Search Path Element) affecting Antilles tools libraries in the PyPI ecosystem. The issue involves antilles dependency confusion vulnerability. Remediation is available by upgrading affected packages to version 1.0.1.
CVE-2021-3840 at a Glance
Security Impact
CVSS: 8.8
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
How to Fix CVE-2021-3840
To remediate this vulnerability, upgrade all affected Antilles tools dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
pip install antilles-tools>=1.0.1Run the following command in your project directory to verify that all resolved dependencies use the patched release:
pip show antilles-toolsHow to Check if You Are Affected
To determine whether your Python environment is affected by CVE-2021-3840, inspect your installed packages using pip:
pip show antilles-toolsAnalyze the terminal output to locate any version of Antilles tools in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.0.1), your application is affected.
Note: The pip show antilles-tools command checks currently installed packages in your active Python environment.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-427: Uncontrolled Search Path Element, where 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. In Antilles tools, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2021-3840 Affected Antilles tools Versions
1 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
antilles-tools
|
PyPI |
< 1.0.1
|
1.0.1
|
References
Frequently Asked Questions
What is CVE-2021-3840?
Which Antilles tools versions are affected?
What version fixes CVE-2021-3840?
Is antilles-tools affected?
What is the CVSS score of CVE-2021-3840?
What CWE is associated with CVE-2021-3840?
How can I check PyPI dependencies for CVE-2021-3840?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-hgc3-hp6x-wpgx",
"modified" : "2024-09-04T20:58:13Z",
"published" : "2021-11-03T17:36:22Z",
"aliases" : [ "CVE-2021-3840" ],
"summary" : "Antilles Dependency Confusion Vulnerability",
"details" : "### Potential Impact: \nRemote code execution.\n\n### Scope of Impact: \nOpen-source project specific.\n\n### Summary Description:\nA 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). \nMITRE 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.\nThe 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.\n\n### Mitigation Strategy for Customers (what you should do to protect yourself):\nRemove previous versions of Antilles as a precautionary measure and Update to version 1.0.1 or later.\n\n### Acknowledgement:\nThe Antilles team thanks Kotko Vladyslav for reporting this issue.\n\n### References:\nhttps://github.com/lenovo/Antilles/commit/c7b9c5740908b343aceefe69733d9972e64df0b9\n",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
}, {
"type" : "CVSS_V4",
"score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "PyPI",
"name" : "antilles-tools"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "1.0.1"
} ]
} ]
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/lenovo/Antilles/security/advisories/GHSA-hgc3-hp6x-wpgx"
}, {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-3840"
}, {
"type" : "WEB",
"url" : "https://github.com/lenovo/Antilles/commit/c7b9c5740908b343aceefe69733d9972e64df0b9"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/lenovo/Antilles"
}, {
"type" : "WEB",
"url" : "https://github.com/pypa/advisory-database/tree/main/vulns/antilles-tools/PYSEC-2021-840.yaml"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-427" ],
"severity" : "HIGH",
"github_reviewed" : true,
"github_reviewed_at" : "2021-11-03T15:04:04Z",
"nvd_published_at" : "2021-11-12T22:15:00Z"
}
}