Description
The user impersonation flow in WSO2 Identity Server fails to properly manage refresh tokens associated with impersonated sessions. This allows an attacker who has obtained an access token for an impersonated user to leverage the refresh token grant to obtain new access tokens, extending their ability to act as the legitimate user. An attacker who gains access to an impersonated user's access token can exploit this weakness to renew their authorization. This results in the continued ability to perform actions on behalf of the actual user, compromising log integrity and traceability by masking the true actor.
CVSS breakdown
CVSS 3.1
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
Affected products
- WSO2 / Identity Server7.0.0 – 7.0.0.130
- WSO2 / WSO2 Carbon OAuth7.0.26 – 7.0.26.83
- WSO2 / WSO2 Carbon OAuth7.0.259 – 7.0.259.31
- WSO2 / WSO2 Carbon OAuthx – *
- WSO2 / WSO2 Identity Server7.0.0 – 7.0.0.130
- WSO2 / WSO2 Identity Server7.1.0 – 7.1.0.38
Updated 40m ago · 8 sources