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The exploitation of a valid web session by stealing or predicting the session token that authenticates a user. Attackers obtain session IDs through XSS, network sniffing, or brute force. Once they have a valid token, they impersonate the victim without needing their password.
Session hijacking bypasses authentication entirely, giving attackers full access to user accounts. Penetration testers test for session management flaws in every web application assessment. Security engineers configure secure cookie flags, session timeouts, and token rotation to prevent hijacking. This attack demonstrates why HTTPS alone is not enough.
Citation index · auto-derived from course content
2 public surfaces on the platform reference this term in a meaningful way. Sorted by relevance.
Related glossary entries · 2
Other glossary terms whose definition cites this one.
"…us codes, headers, and cookies to detect injection attacks, session hijacking, and API abuse. Penetration testers intercept HTTPS traffic…"
"Traditional login-and-forget authentication cannot detect session hijacking or credential sharing after initial access. Security archit…"
The exploitation of a valid web session by stealing or predicting the session token that authenticates a user. Attackers obtain session IDs through XSS, network sniffing, or brute force. Once they have a valid token, they impersonate the victim without needing their password.
Session hijacking bypasses authentication entirely, giving attackers full access to user accounts. Penetration testers test for session management flaws in every web application assessment. Security engineers configure secure cookie flags, session timeouts, and token rotation to prevent hijacking. This attack demonstrates why HTTPS alone is not enough.
Cybersecurity professionals who work with Session Hijacking include Penetration Tester, Security Engineer, Incident Responder. These roles apply Session Hijacking knowledge within the Offensive Security domain.
Definitions are original explanations written for career development purposes. For authoritative technical definitions, refer to NIST, ISO, or the relevant standards body.
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