SB2022122177 - Multiple vulnerabilities in IBM Secure External Authentication Server

Description

This security bulletin contains information about 5 secuirty vulnerabilities.

1) Improper input validation (CVE-ID: CVE-2021-35578)

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

The vulnerability exists due to improper input validation within the JSSE component in Oracle GraalVM Enterprise Edition when processing TLS 1.3 ClientHello packets. A remote non-authenticated attacker can exploit this vulnerability to perform service disruption.

2) Man-in-the-Middle (MitM) attack (CVE-ID: CVE-2021-35550)

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

The vulnerability exists due to the JSSE component in Oracle GraalVM Enterprise Edition offers cipher suites in the wrong way, which causes weaker cipher suites to be offered ahead of the strong ones. A remote non-authenticated attacker can exploit this vulnerability to gain access to sensitive information.

3) Improper Verification of Cryptographic Signature (CVE-ID: CVE-2021-2369)

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to an error in JAR validation implementation. A remote attacker can modify the signed JAR file in a way it will be considered as signed.

4) Improper input validation (CVE-ID: CVE-2022-21291)

The vulnerability allows a remote non-authenticated attacker to manipulate data.

The vulnerability exists due to improper input validation within the Hotspot component in Oracle GraalVM Enterprise Edition. A remote non-authenticated attacker can exploit this vulnerability to manipulate data.

5) Improper input validation (CVE-ID: CVE-2021-35603)

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

The vulnerability exists due to improper input validation within the JSSE component in Oracle GraalVM Enterprise Edition. A remote non-authenticated attacker can exploit this vulnerability to gain access to sensitive information.

Remediation

Install update from vendor's website.

References

• https://www.oracle.com/security-alerts/cpuoct2021.html
• https://www.oracle.com/security-alerts/cpujul2021.html
• https://www.oracle.com/security-alerts/cpujan2022.html