- Description
- It was found that Keycloak's Node.js adapter before version 4.8.3 did not properly verify the web token received from the server in its backchannel logout . An attacker with local access could use this to construct a malicious web token setting an NBF parameter that could prevent user access indefinitely.
- Source
- secalert@redhat.com
- NVD status
- Modified
CVSS 3.0
- Type
- Primary
- Base score
- 5.5
- Impact score
- 3.6
- Exploitability score
- 1.8
- Vector string
- CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Severity
- MEDIUM
CVSS 2.0
- Type
- Primary
- Base score
- 2.1
- Impact score
- 2.9
- Exploitability score
- 3.9
- Vector string
- AV:L/AC:L/Au:N/C:N/I:N/A:P
- Hype score
- Not currently trending
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:redhat:keycloak:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A5894EFD-35C9-43E9-B3EE-58709019135F",
"versionEndExcluding": "4.8.3"
},
{
"criteria": "cpe:2.3:a:redhat:single_sign-on:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "2C31CCB1-8234-47D6-9134-F0916AF16F79",
"versionEndExcluding": "7.3.2"
}
],
"operator": "OR"
}
]
}
]