- Tactics
- Lateral Movement
- Platforms
- IaaS, Office Suite, SaaS
- Reference
- attack.mitre.org/techniques/T1550.004
Description
Adversaries can use stolen session cookies to authenticate to web applications and services. This technique bypasses some multi-factor authentication protocols since the session is already authenticated.(Citation: Pass The Cookie)
Authentication cookies are commonly used in web applications, including cloud-based services, after a user has authenticated to the service so credentials are not passed and re-authentication does not need to occur as frequently. Cookies are often valid for an extended period of time, even if the web application is not actively used. After the cookie is obtained through Steal Web Session Cookie or Web Cookies, the adversary may then import the cookie into a browser they control and is then able to use the site or application as the user for as long as the session cookie is active. Once logged into the site, an adversary can access sensitive information, read email, or perform actions that the victim account has permissions to perform.
There have been examples of malware targeting session cookies to bypass multi-factor authentication systems.(Citation: Unit 42 Mac Crypto Cookies January 2019)
How GTK Cyber trains on this
GTK Cyber's Threat Hunting with Data Science course teaches you to build machine-learning detections for techniques like this across the MITRE ATT&CK framework, including the Lateral Movement tactic this technique falls under. Practitioner-led, focused on real detections, not memorizing technique IDs.
Related techniques
- T1021 — Remote Services
- T1072 — Software Deployment Tools
- T1080 — Taint Shared Content
- T1091 — Replication Through Removable Media
- T1210 — Exploitation of Remote Services
- T1534 — Internal Spearphishing
- T1550 — Use Alternate Authentication Material
- T1563 — Remote Service Session Hijacking
- T1570 — Lateral Tool Transfer