Vulnerability Information
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Vulnerability Title
SignXML's signature verification with HMAC is vulnerable to a timing attack
Vulnerability Description
SignXML is an implementation of the W3C XML Signature standard in Python. When verifying signatures with X509 certificate validation turned off and HMAC shared secret set (`signxml.XMLVerifier.verify(require_x509=False, hmac_key=...`), versions of SignXML prior to 4.0.4 are vulnerable to a potential timing attack. The verifier may leak information about the correct HMAC when comparing it with the user supplied hash, allowing users to reconstruct the correct HMAC for any data.
CVSS Information
N/A
Vulnerability Type
通过时间差异性导致的信息暴露
Vulnerability Title
SignXML 安全漏洞
Vulnerability Description
SignXML是XML-Security开源的一个Python XML签名和XAdES库。 SignXML 4.0.4之前版本存在安全漏洞，该漏洞源于时序攻击缺陷，可能导致HMAC密钥泄露。
CVSS Information
N/A
Vulnerability Type
N/A