The Cloud Controller and Router in Cloud Foundry (CAPI-release capi versions prior to v1.32.0, Routing-release versions prior to v0.159.0, CF-release versions prior to v267) do not validate the issuer on JSON Web Tokens (JWTs) from UAA. With certain multi-zone UAA configurations, zone administrators are able to escalate their privileges.
[
{
"product": "Cloud Foundry",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "Cloud Foundry"
}
]
}
]