CVE-2024-21491

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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.

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

使用候选路径或通道进行的认证绕过

svix 安全漏洞

svix是一款企业级 Webhook 服务。 svix 1.17.0 之前版本存在安全漏洞，该漏洞源于容易受到身份验证绕过的攻击，攻击者利用该漏洞可以通过提供与实际签名开头相匹配的较短签名来绕过签名验证。

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