// For flags

CVE-2020-1714

keycloak: Lack of checks in ObjectInputStream leading to Remote Code Execution

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

Se detectó un fallo en Keycloak versiones anteriores a 11.0.0, donde la base de código contiene usos de la función ObjectInputStream sin ningún tipo de comprobaciones. Este fallo permite a un atacante inyectar Objetos Java serializados arbitrariamente, que luego se deserializarán en un contexto privilegiado y conlleva potencialmente a una ejecución de código remota.

A flaw was found in Keycloak, 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.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
Single
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2019-11-27 CVE Reserved
  • 2020-05-13 CVE Published
  • 2024-06-22 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-20: Improper Input Validation
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Redhat
Search vendor "Redhat"
Keycloak
Search vendor "Redhat" for product "Keycloak"
< 11.0.0
Search vendor "Redhat" for product "Keycloak" and version " < 11.0.0"
-
Affected
Redhat
Search vendor "Redhat"
Decision Manager
Search vendor "Redhat" for product "Decision Manager"
7.0
Search vendor "Redhat" for product "Decision Manager" and version "7.0"
-
Affected
Redhat
Search vendor "Redhat"
Jboss Fuse
Search vendor "Redhat" for product "Jboss Fuse"
7.0.0
Search vendor "Redhat" for product "Jboss Fuse" and version "7.0.0"
-
Affected
Redhat
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Openshift Application Runtimes
Search vendor "Redhat" for product "Openshift Application Runtimes"
--
Affected
Redhat
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Process Automation
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7.0
Search vendor "Redhat" for product "Process Automation" and version "7.0"
-
Affected
Redhat
Search vendor "Redhat"
Single Sign-on
Search vendor "Redhat" for product "Single Sign-on"
7.0
Search vendor "Redhat" for product "Single Sign-on" and version "7.0"
-
Affected
Quarkus
Search vendor "Quarkus"
Quarkus
Search vendor "Quarkus" for product "Quarkus"
<= 1.4.2
Search vendor "Quarkus" for product "Quarkus" and version " <= 1.4.2"
-
Affected