CVE-2023-20572
Description
An observable timing discrepancy in the ASP could allow a privileged attacker to perform a brute-force attack against the hash message authentication code, allowing the input of an arbitrary message, potentially leading to a loss of data integrity.
Summary dbcve.org
A timing side-channel vulnerability in the authentication signature processing allows an attacker with existing privileges to exploit observable timing discrepancies during HMAC verification. This enables brute-force attacks to deduce valid authentication tokens, potentially allowing injection of arbitrary messages and compromising data integrity.
Mitigation
Implement constant-time comparison algorithms for HMAC verification and audit all cryptographic operations for timing leakages to prevent side-channel attacks.