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CWE-1025 (使用错误要素进行比较) — Vulnerability Class 7

7 vulnerabilities classified as CWE-1025 (使用错误要素进行比较). AI Chinese analysis included.

CWE-1025 represents a logical flaw where code compares entities based on incorrect attributes, leading to erroneous security decisions. This weakness typically arises when developers assume two objects are equivalent based on superficial similarities, such as comparing memory addresses instead of content, or using hash values without verifying integrity. Attackers exploit this by crafting inputs that satisfy the flawed comparison criteria, potentially bypassing authentication checks or authorization controls. For instance, an attacker might inject data that matches a weak identifier used for session validation. To prevent this, developers must ensure comparisons rely on robust, unique identifiers and validate all relevant characteristics of the entities involved. Rigorous code reviews and unit testing focused on edge cases help identify these logical errors, ensuring that security-critical decisions are based on accurate and comprehensive data analysis rather than misleading or incomplete factors.

MITRE CWE Description
The code performs a comparison between two entities, but the comparison examines the wrong factors or characteristics of the entities, which can lead to incorrect results and resultant weaknesses.
Common Consequences (1)
OtherVaries by Context
This can lead to incorrect results and resultant weaknesses. For example, the code might inadvertently compare references to objects, instead of the relevant contents of those objects, causing two "equal" objects to be considered unequal.
Examples (1)
In the example below, two Java String objects are declared and initialized with the same string values. An if statement is used to determine if the strings are equivalent.
String str1 = new String("Hello"); String str2 = new String("Hello"); if (str1 == str2) { System.out.println("str1 == str2"); }
Bad · Java
if (str1.equals(str2)) { System.out.println("str1 equals str2"); }
Good · Java

Vulnerabilities classified as CWE-1025 (使用错误要素进行比较) represent 7 CVEs. The CWE taxonomy describes the weakness; review individual CVEs for product-specific impact.