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Description
Simple authentication protocols are subject to reflection attacks if a malicious user can use the target machine to impersonate a trusted user.
Modes of Introduction:
– Architecture and Design
Likelihood of Exploit: Medium
Related Weaknesses
Consequences
Access Control: Gain Privileges or Assume Identity
The primary result of reflection attacks is successful authentication with a target machine — as an impersonated user.
Potential Mitigations
Phase: Architecture and Design
Description:
Use different keys for the initiator and responder or of a different type of challenge for the initiator and responder.
Phase: Architecture and Design
Description:
Let the initiator prove its identity before proceeding.
CVE References
- CVE-2005-3435
- product authentication succeeds if user-provided MD5 hash matches the hash in its database; this can be subjected to replay attacks.