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CVE-2021-21373

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CVE-2021-21373

Published: Mar 26, 2021

Modified: Aug 3, 2024

PUBLISHED

CVSS v3.1

7.5

HIGH

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.

VendorProductVersions

nim-lang

security

affected
< 1.2.10
affected
>= 1.4.0, < 1.4.4

Weaknesses (CWE)

CWE-348

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:H/A:L

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

High

Availability

Low

References

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