SB2020121744 - Multiple vulnerabilities in Red Hat Single Sign-On 7.4
Published: December 17, 2020 Updated: April 24, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 7 secuirty vulnerabilities.
1) Input validation error (CVE-ID: CVE-2020-1727)
The vulnerability allows a remote authenticated user to read and manipulate data.
A vulnerability was found in Keycloak before 9.0.2, where every Authorization URL that points to an IDP server lacks proper input validation as it allows a wide range of characters. This flaw allows a malicious to craft deep links that introduce further attack scenarios on affected clients.
2) Deserialization of Untrusted Data (CVE-ID: CVE-2020-10968)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to insecure input validation when processing serialized data between serialization gadgets and typing, related to org.aoju.bus.proxy.provider.remoting.RmiProvider. A remote attacker can pass specially crafted data to the application and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
3) Deserialization of Untrusted Data (CVE-ID: CVE-2020-11111)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to insecure input validation when processing serialized data between serialization gadgets and typing, related to org.apache.activemq.*. A remote attacker can pass specially crafted data to the application and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
4) Deserialization of Untrusted Data (CVE-ID: CVE-2020-11112)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to insecure input validation when processing serialized data between serialization gadgets and typing, related to org.apache.commons.proxy.provider.remoting.RmiProvider. A remote attacker can pass specially crafted data to the application and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
5) Deserialization of Untrusted Data (CVE-ID: CVE-2020-11113)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to insecure input validation when processing serialized data between serialization gadgets and typing, related to org.apache.openjpa.ee.WASRegistryManagedRuntime. A remote attacker can pass specially crafted data to the application and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
6) Deserialization of Untrusted Data (CVE-ID: CVE-2020-11619)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to affected software mishandles the interaction between serialization gadgets and typing, related to "org.springframework.aop.config.MethodLocatingFactoryBean" (aka spring-aop). A remote attacker can pass specially crafted data to the application and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
7) Deserialization of Untrusted Data (CVE-ID: CVE-2020-11620)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to the affected software mishandles the interaction between serialization gadgets and typing, related to "org.apache.commons.jelly.impl.Embedded" (aka commons-jelly). A remote attacker can pass specially crafted data to the application and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.