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CVE PROGRAM SOURCE RECORD8.1 High

CVE-2021-21374

Nimble fails to validate certificates due to insecure httpClient defaults

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.

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