U.S. flag   An official website of the United States government
Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock (Dot gov) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

CVE-2021-21374 Detail

Description

Nimble is a package manager for the Nim programming language. In Nim release versions before versions 1.2.10 and 1.4.4, "nimble refresh" fetches a list of Nimble packages over HTTPS without full verification of the SSL/TLS certificate due to the default setting of httpClient. An attacker able to perform MitM can deliver a modified package list containing malicious software packages. If the packages are installed and used the attack escalates to untrusted code execution.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

Hyperlink Resource
https://consensys.net/diligence/vulnerabilities/nim-insecure-ssl-tls-defaults-remote-code-execution/ Exploit  Third Party Advisory 
https://consensys.net/diligence/vulnerabilities/nim-insecure-ssl-tls-defaults-remote-code-execution/ Exploit  Third Party Advisory 
https://github.com/nim-lang/Nim/pull/16940 Patch  Third Party Advisory 
https://github.com/nim-lang/Nim/pull/16940 Patch  Third Party Advisory 
https://github.com/nim-lang/nimble/blob/master/changelog.markdown#0130 Release Notes  Third Party Advisory 
https://github.com/nim-lang/nimble/blob/master/changelog.markdown#0130 Release Notes  Third Party Advisory 
https://github.com/nim-lang/security/security/advisories/GHSA-c2wm-v66h-xhxx Third Party Advisory 
https://github.com/nim-lang/security/security/advisories/GHSA-c2wm-v66h-xhxx Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-295 Improper Certificate Validation cwe source acceptance level NIST  
CWE-349 Acceptance of Extraneous Untrusted Data With Trusted Data GitHub, Inc.  
CWE-599 Missing Validation of OpenSSL Certificate GitHub, Inc.  
CWE-348 Use of Less Trusted Source GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-21374
NVD Published Date:
03/26/2021
NVD Last Modified:
11/21/2024
Source:
GitHub, Inc.