X509_verify_cert

API 概述

X509_verify_cert 是 openssl 中的一个API。该规属于return value check 类型。该规则是使用 AURC 生成的。

规则描述

提示

Both X509_verify_cert() and X509_STORE_CTX_verify() return 1 if a complete chain can be built and validated, otherwise they return 0, and in exceptional circumstances (such as malloc failure and internal errors) they can also return a negative code.

信息

标签：return value check

参数下标：N/A

CWE类别：CWE-253

规则代码

import cpp

class OpenSSLFunctionCall extends FunctionCall {
  OpenSSLFunctionCall() {
    this.getTarget().hasName("X509_verify_cert")
  }
}

from OpenSSLFunctionCall call, UnaryOperation uop
where
  uop.getOperator() = "!" and
  uop.getOperand() = call.getAnAccess()
select uop, "This negation checks the return value of X509_verify_cert."