Open Redirect

Definitions

1. Open Redirect is an attack technique in which an adversary abuses redirect logic so a trusted site sends users to an attacker-controlled destination. Defenders analyze it to understand prerequisites, affected trust boundaries, and likely telemetry, then reduce risk with layered controls such as validation, hardening, rate limits, segmentation, and high-quality logging for investigation and response.

   In plain English: Open Redirect is a way attackers abuse systems or trust relationships, and defenders counter it with better design, validation, monitoring, and layered controls.

   Example: "During the assessment, the team simulated Open Redirect against a staging service, confirmed the weakness with logs and telemetry, and then added tighter validation, safer defaults, and monitoring so the same technique would trigger an alert in production."

Related Terms

• Authentication
• OTP
• CAPTCHA Bypass
• Cookie Poisoning
• HTTP Parameter Pollution
• HTTP Request Smuggling
• HTTP Response Splitting
• HTTPS Stripping