CVE-2020-36327
Bundler Dependency Confusion Vulnerability
Description
Bundler 1.16.0 through 2.2.9 and 2.2.11 through 2.2.16 sometimes chooses a dependency source based on the highest gem version number, which means that a rogue gem found at a public source may be chosen, even if the intended choice was a private gem that is a dependency of another private gem that is explicitly depended on by the application. NOTE: it is not correct to use CVE-2021-24105 for every "Dependency Confusion" issue in every product.
INFO
Published Date :
April 29, 2021, 3:15 a.m.
Last Modified :
Nov. 21, 2024, 5:29 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2020-36327
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update Bundler to the latest available version.
- Update affected Linux packages.
- Consult vendor advisories for specific package updates.
Public PoC/Exploit Available at Github
CVE-2020-36327 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-36327.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-36327 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-36327
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-36327 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-36327 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://bundler.io/blog/2021/02/15/a-more-secure-bundler-we-fixed-our-source-priorities.html Added Reference https://github.com/rubygems/rubygems/issues/3982 Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MWXHK5UUHVSHF7HTHMX6JY3WXDVNIHSL/ Added Reference https://mensfeld.pl/2021/02/rubygems-dependency-confusion-attack-side-of-things/ Added Reference https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-24105 Added Reference https://www.zofrex.com/blog/2021/04/29/bundler-still-vulnerable-dependency-confusion-cve-2020-36327/ -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MWXHK5UUHVSHF7HTHMX6JY3WXDVNIHSL/ [No types assigned] Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/MWXHK5UUHVSHF7HTHMX6JY3WXDVNIHSL/ -
Modified Analysis by [email protected]
Apr. 05, 2022
Action Type Old Value New Value Changed Reference Type https://github.com/rubygems/rubygems/issues/3982 Exploit, Third Party Advisory https://github.com/rubygems/rubygems/issues/3982 Exploit, Issue Tracking, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/MWXHK5UUHVSHF7HTHMX6JY3WXDVNIHSL/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/MWXHK5UUHVSHF7HTHMX6JY3WXDVNIHSL/ Mailing List, Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:a:microsoft:package_manager_configurations:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jul. 30, 2021
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/MWXHK5UUHVSHF7HTHMX6JY3WXDVNIHSL/ [No Types Assigned] -
Reanalysis by [email protected]
May. 17, 2021
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Removed CVSS V2 NIST (AV:N/AC:L/Au:N/C:C/I:C/A:C) Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:C/I:C/A:C) Removed CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Removed CPE Configuration OR *cpe:2.3:a:microsoft:package_manager_configurations:-:*:*:*:*:*:*:* -
Initial Analysis by [email protected]
May. 12, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:C/I:C/A:C) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://bundler.io/blog/2021/02/15/a-more-secure-bundler-we-fixed-our-source-priorities.html No Types Assigned https://bundler.io/blog/2021/02/15/a-more-secure-bundler-we-fixed-our-source-priorities.html Vendor Advisory Changed Reference Type https://github.com/rubygems/rubygems/issues/3982 No Types Assigned https://github.com/rubygems/rubygems/issues/3982 Exploit, Third Party Advisory Changed Reference Type https://mensfeld.pl/2021/02/rubygems-dependency-confusion-attack-side-of-things/ No Types Assigned https://mensfeld.pl/2021/02/rubygems-dependency-confusion-attack-side-of-things/ Third Party Advisory Changed Reference Type https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-24105 No Types Assigned https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-24105 Patch, Vendor Advisory Changed Reference Type https://www.zofrex.com/blog/2021/04/29/bundler-still-vulnerable-dependency-confusion-cve-2020-36327/ No Types Assigned https://www.zofrex.com/blog/2021/04/29/bundler-still-vulnerable-dependency-confusion-cve-2020-36327/ Exploit, Third Party Advisory Added CWE NIST NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:a:bundler:bundler:*:*:*:*:*:ruby:*:* versions from (including) 1.16.0 up to (excluding) 2.2.10 *cpe:2.3:a:bundler:bundler:*:*:*:*:*:ruby:*:* versions from (including) 2.2.11 up to (including) 2.2.16 Added CPE Configuration OR *cpe:2.3:a:microsoft:package_manager_configurations:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Apr. 30, 2021
Action Type Old Value New Value Added Reference https://bundler.io/blog/2021/02/15/a-more-secure-bundler-we-fixed-our-source-priorities.html [No Types Assigned] Added Reference https://mensfeld.pl/2021/02/rubygems-dependency-confusion-attack-side-of-things/ [No Types Assigned] Added Reference https://www.zofrex.com/blog/2021/04/29/bundler-still-vulnerable-dependency-confusion-cve-2020-36327/ [No Types Assigned]
Vulnerability Scoring Details
Base CVSS Score: 8.8
Base CVSS Score: 9.3
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
11.93 }} -0.15%
score
0.93479
percentile