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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2021-21373

Nimble falls back to insecure http url when fetching packages

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 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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

nim-lang security

  • < 1.2.10affected
  • >= 1.4.0, < 1.4.4affected

References