SB2023101830 - Multiple vulnerabilities in Red Hat AMQ Broker
Published: October 18, 2023
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 secuirty vulnerabilities.
1) Improper Certificate Validation (CVE-ID: CVE-2023-1664)
The vulnerability allows a remote attacker to bypass client certificate validation.
The vulnerability exists due to improper certificate validation when using X509 Client Certificate Authenticatior with the option "Revalidate Client Certificate". A remote attacker with ability to directly connect to Keycloak (e.g. not via the reverse proxy) can bypass certificate validation and gain unauthorized access to the application.
Successful exploitation of the vulnerability requires that there's a configuration error in KC_SPI_TRUSTSTORE_FILE_FILE, which results in accepting any certificate with the logging information of "Cannot validate client certificate trust: Truststore not available".
2) Incorrect default permissions (CVE-ID: CVE-2023-2976)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to incorrect default permissions in com.google.common.io.FileBackedOutputStream. A local user with access to the system can view contents of files and directories or modify them.
3) Deserialization of Untrusted Data (CVE-ID: CVE-2023-33008)
The vulnerability allows a remote attacker to perform a denial of service attack.
The vulnerability exists due to insecure input validation when processing serialized data. A remote attacker can pass specially crafted JSON input that uses large numbers (numbers such as 1e20000000) to the application and perform a denial of service attack.
Remediation
Install update from vendor's website.