CAPEC Definitions / CAPEC-476
CAPEC-476: Signature Spoofing by Misrepresentation
An attacker exploits a weakness in the parsing or display code of the recipient software to generate a data blob containing a supposedly valid signature, but the signer's identity is falsely represented, which can lead to the attacker manipulating the recipient software or its victim user to perform compromising actions.
Extended Description
No Extended Description.
Mitigations
Ensure the application is using parsing and data display techniques that will accurately display control characters, international symbols and markings, and ultimately recognize potential homograph attacks.
Relationships with other CAPECs
CAPEC-473: Signature Spoof
Prerequisites
Recipient is using signature verification software that does not clearly indicate potential homographs in the signer identity.Recipient is using signature verification software that contains a parsing vulnerability, or allows control characters in the signer identity field, such that a signature is mistakenly displayed as valid and from a known or authoritative signer.
Related Weaknesses
CWE-290: Authentication Bypass by Spoofing
