CVE-2021-21373
- Source
- https://cve.org/CVERecord?id=CVE-2021-21373
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-21373.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-21373
- Downstream
- Related
- Published
- 2021-03-26T22:15:12.773Z
- Modified
- 2026-02-13T08:42:33.794228Z
- Severity
-
- 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
- Summary
- [none]
- Details
-
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 by default. In case of error it falls back to a non-TLS URL http://irclogs.nim-lang.org/packages.json. 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.
- References
-
- https://consensys.net/diligence/vulnerabilities/nim-insecure-ssl-tls-defaults-remote-code-execution/
- https://github.com/nim-lang/nimble/blob/master/changelog.markdown#0130
- https://github.com/nim-lang/security/security/advisories/GHSA-8w52-r35x-rgp8
- https://consensys.net/diligence/vulnerabilities/nim-insecure-ssl-tls-defaults-remote-code-execution/