CVE-2020-5408— Dictionary attack with Spring Security queryable text encryptor

Dictionary attack with Spring Security queryable text encryptor

Spring Security versions 5.3.x prior to 5.3.2, 5.2.x prior to 5.2.4, 5.1.x prior to 5.1.10, 5.0.x prior to 5.0.16 and 4.2.x prior to 4.2.16 use a fixed null initialization vector with CBC Mode in the implementation of the queryable text encryptor. A malicious user with access to the data that has been encrypted using such an encryptor may be able to derive the unencrypted values using a dictionary attack.

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在CBC加密模式中未使用随机化IV向量

Vmware VMware Spring Security 安全特征问题漏洞

Vmware VMware Spring Security是美国威睿（Vmware）公司的一套为基于Spring的应用程序提供说明性安全保护的安全框架。 VMware Spring Security中存在安全特征问题漏洞。攻击者可借助字典攻击利用该漏洞获取未加密的值。以下产品及版本受到影响：Spring Security 5.3.2之前的5.3.x版本，5.2.4之前的5.2.x版本，5.1.10之前的5.1.x版本，5.0.16之前的5.0.x版本，4.2.16之前的4.2.x版本。

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