CVE-2020-1714
This flaw allows an attacker to inject arbitrarily serialized Java Objects, which would then get deserialized in a privileged context and potentially lead to remote code execution.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.60%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A flaw was found in Keycloak before version 11.0.0, where the code base contains usages of ObjectInputStream without type checks. This flaw allows an attacker to inject arbitrarily serialized Java Objects, which would then get deserialized in a privileged context and potentially lead to remote code execution.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.60% probability · 84th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- redhat/keycloak · redhat/decision manager · redhat/jboss fuse · redhat/openshift application runtimes · redhat/process automation · redhat/single sign-on · quarkus/quarkus
- Source
- secalert@redhat.com
References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1714Issue Tracking, Vendor Advisory
- https://github.com/keycloak/keycloak/pull/7053Patch, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1714Issue Tracking, Vendor Advisory
- https://github.com/keycloak/keycloak/pull/7053Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.