Where
AND
-Infinity
0
Severity
8.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

If an attacker modifies the SAML Response and removes the <Signature> Sections, the message is still accepted and the message can be modified, allowing the attacker to impersonate any user on the keycloak protected systems by modifying assertations.

Upstream Issue:

https://issues.jboss.org/browse/KEYCLOAK-10786

1 / 3
Source: Red Hat

Remedy

Administrator can prevent this issue for POST binding by requiring signed assertions.
First published (updated )

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