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    2 vulnerabilities by svix

    CVE-2024-21491 (GCVE-0-2024-21491)

    Vulnerability from nvd – Published: 2024-02-13 05:00 – Updated: 2025-05-09 18:25
    VLAI
    Summary
    Versions of the package svix before 1.17.0 are vulnerable to Authentication Bypass due to an issue in the verify function where signatures of different lengths are incorrectly compared. An attacker can bypass signature verification by providing a shorter signature that matches the beginning of the actual signature. **Note:** The attacker would need to know a victim uses the Rust library for verification,no easy way to automatically check that; and uses webhooks by a service that uses Svix, and then figure out a way to craft a malicious payload that will actually include all of the correct identifiers needed to trick the receivers to cause actual issues.
    Severity
    5.9 (Medium)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:N
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-288 - Authentication Bypass
    • CWE-288 - Authentication Bypass Using an Alternate Path or Channel
    Assigner
    References
    Impacted products
    Vendor Product Version
    n/a svix Affected: 0 , < 1.17.0 (semver)
    Credits
    Fredrik Meringdal
    Show details on NVD website
    To clipboard 

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    CVE-2024-21491 (GCVE-0-2024-21491)

    Vulnerability from cvelistv5 – Published: 2024-02-13 05:00 – Updated: 2025-05-09 18:25
    VLAI
    Summary
    Versions of the package svix before 1.17.0 are vulnerable to Authentication Bypass due to an issue in the verify function where signatures of different lengths are incorrectly compared. An attacker can bypass signature verification by providing a shorter signature that matches the beginning of the actual signature. **Note:** The attacker would need to know a victim uses the Rust library for verification,no easy way to automatically check that; and uses webhooks by a service that uses Svix, and then figure out a way to craft a malicious payload that will actually include all of the correct identifiers needed to trick the receivers to cause actual issues.
    Severity
    5.9 (Medium)
    CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:N
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-288 - Authentication Bypass
    • CWE-288 - Authentication Bypass Using an Alternate Path or Channel
    Assigner
    References
    Impacted products
    Vendor Product Version
    n/a svix Affected: 0 , < 1.17.0 (semver)
    Credits
    Fredrik Meringdal
    Show details on NVD website
    To clipboard 

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