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    CVE-2021-21373

    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.

    Published:Mar 26, 2021
    Last Modified:Nov 21, 2024
    EPS:Mar 26, 2021
    EPSS Score:0.0019
    CVSS Score:7.5

    Affected Products

    Vendor
    Nim-lang
    Product
    Nim

    Exploits

    https://consensys.net/diligence/vulnerabilities/nim-insecure-ssl-tls-defaults-remote-code-execution/https://consensys.net/diligence/vulnerabilities/nim-insecure-ssl-tls-defaults-remote-code-execution/

    Related CVEs

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    CVE-2021-21372 (CVSS 8.3) — Nimble is a package manager for the Nim programming language. In Nim release version before versions 1.2.10 an…
    CVE-2020-15690 (CVSS 9.8) — In Nim before 1.2.6, the standard library asyncftpclient lacks a check for whether a message contains a newlin…
    CVE-2020-15694 (CVSS 7.5) — In Nim 1.2.4, the standard library httpClient fails to properly validate the server response. For example, htt…
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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High