GHSA-pf38-cw3p-22q9

ghsaUSosv

Keycloak is vulnerable to IDN homograph attack

view advisory published 2022-04-28Licence: CC-BY-4.0

A flaw was found in keycloak as shipped in Red Hat Single Sign-On 7.4 where IDN homograph attacks are possible. A malicious user can register himself with a name already registered and trick admin to grant him extra privileges.

describes (1)

Related CVEs.

ID	severity	EPSS	exploitable	published
CVE-2021-3424US	medium5.3	0.77% (56th)	—	2021-06-01
A flaw was found in keycloak as shipped in Red Hat Single Sign-On 7.4 where IDN homograph attacks are possible. A malicious user can register himself with a name already registered…

references

External citations — patches, advisories, analysis.

https://bugzilla.redhat.com/show_bug.cgi?id=1933320WEB
https://github.com/keycloak/keycloakPACKAGE
https://nvd.nist.gov/vuln/detail/CVE-2021-3424ADVISORY

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