Description
The product’s behaviors indicate important differences that may be observed by unauthorized actors in a way that reveals (1) its internal state or decision process, or (2) differences from other products with equivalent functionality.
Ideally, a product should provide as little information about its internal operations as possible. Otherwise, attackers could use knowledge of these internal operations to simplify or optimize their attack. In some cases, behavioral discrepancies can be used by attackers to form a side channel.
Modes of Introduction:
– Architecture and Design
Related Weaknesses
CWE-203
CWE-514
Consequences
Confidentiality, Access Control: Read Application Data, Bypass Protection Mechanism
Potential Mitigations
CVE References
- CVE-2002-0208
- Product modifies TCP/IP stack and ICMP error messages in unusual ways that show the product is in use.
- CVE-2004-2252
- Behavioral infoleak by responding to SYN-FIN packets.
