HTTP Requests with X-Vercel-Set-Bypass-Cookie Header, (Tue, Apr 28th)
Summary
The SANS Internet Storm Center observed unusual HTTP requests to its honeypot containing an "X-Vercel-Set-Bypass-Cookie" header. This header appears to be related to bypassing cookie restrictions, though its exact purpose and implications require further investigation.
IFF Assessment
FOE
The emergence of new headers potentially related to bypassing security mechanisms is a negative development for defenders.
Defender Context
Defenders should be aware of new, potentially malicious HTTP headers that could be used to circumvent security controls or facilitate attacks. Monitoring for unusual headers and analyzing their purpose is crucial for maintaining a strong security posture.