A cross-site request forgery flaw was found in etcd 3.3.1 and earlier. An attacker can set up a website that tries to send a POST request to the etcd server and modify a key. Adding a key is done with PUT so it is theoretically safe (canโt PUT from an HTML form or such) but POST allows creating in-order keys that an attacker can send.
[
{
"product": "etcd",
"vendor": "Red Hat, Inc.",
"versions": [
{
"status": "affected",
"version": "3.3.1 and earlier"
}
]
}
]
bugzilla.redhat.com/show_bug.cgi?id=1552714
github.com/coreos/etcd/issues/9353
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JX7QTIT465BQGRGNCE74RATRQLKT2QE4/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UPGYHMSKDPW5GAMI7BEP3XQRVRLLBJKS/