CVE-2021-21372

Public Exploit
Nimble arbitrary code execution for specially crafted package metadata

Description

Nimble is a package manager for the Nim programming language. In Nim release version before versions 1.2.10 and 1.4.4, Nimble doCmd is used in different places and can be leveraged to execute arbitrary commands. An attacker can craft a malicious entry in the packages.json package list to trigger code execution.

Categories

8.3
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.12% Top 25%
Third-Party Advisory consensys.net Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: nim-lang security
Published at:
Updated at:

References

Link Tags
https://consensys.net/diligence/vulnerabilities/nim-insecure-ssl-tls-defaults-remote-code-execution/ third party advisory exploit
https://github.com/nim-lang/security/security/advisories/GHSA-rg9f-w24h-962p third party advisory
https://github.com/nim-lang/nimble/blob/master/changelog.markdown#0130 third party advisory release notes
https://github.com/nim-lang/nimble/commit/7bd63d504a4157b8ed61a51af47fb086ee818c37 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-21372?
CVE-2021-21372 has been scored as a high severity vulnerability.
How to fix CVE-2021-21372?
To fix CVE-2021-21372, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-21372 being actively exploited in the wild?
It is possible that CVE-2021-21372 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-21372?
CVE-2021-21372 affects nim-lang security.
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