CWE-551

• CWE ID
• 551

• CWE Name
• Incorrect Behavior Order: Authorization Before Parsing and Canonicalization

• CWE Abstraction
• Base

• CWE structure
• Simple

• CWE Status
• Incomplete

If a web server does not fully parse requested URLs before it examines them for authorization, it may be possible for an attacker to bypass authorization protection.

For instance, the character strings /./ and / both mean current directory. If /SomeDirectory is a protected directory and an attacker requests /./SomeDirectory, the attacker may be able to gain access to the resource if /./ is not converted to / before th