Security Advisory
CVE-2021-43298
CVE vulnerability detail — eXtreme Datacenter Security Operations
Description
The code that performs password matching when using Basic HTTP authentication does not use a constant-time memcmp and has no rate-limiting. This means that an unauthenticated network attacker can brute-force the HTTP basic password, byte-by-byte, by recording the webservers response time until the unauthorized (401) response.