CVE-2023-33850 : What You Need to Know

A detailed overview of the IBM GSKit-Crypto information disclosure vulnerability.

Understanding CVE-2023-33850

This section provides insight into the nature, impact, and technical details of the CVE-2023-33850 vulnerability.

What is CVE-2023-33850?

The IBM GSKit-Crypto vulnerability allows a remote attacker to acquire sensitive information through a timing-based side channel in the RSA Decryption implementation. Exploiting this vulnerability involves sending an excessive number of trial messages for decryption, thereby obtaining sensitive data.

The Impact of CVE-2023-33850

The vulnerability poses a high severity risk, with a base CVSS score of 7.5 (High). It has a high confidentiality impact, indicating that sensitive information is at risk of exposure.

Technical Details of CVE-2023-33850

Explore the specifics of the IBM GSKit-Crypto information disclosure vulnerability.

Vulnerability Description

The flaw lies in the RSA Decryption implementation's timing-based side channel, allowing unauthorized access to sensitive information.

Affected Systems and Versions

TXSeries for Multiplatforms: Versions 8.1, 8.2, 9.1 are affected.
CICS TX Standard: Version 11.1 is affected.
CICS TX Advanced: Versions 10.1, 11.1 are impacted.

Exploitation Mechanism

Attackers can exploit the vulnerability by inundating the system with an excessive number of trial messages for decryption.

Mitigation and Prevention

Learn about the steps to address and prevent the IBM GSKit-Crypto information disclosure vulnerability.

Immediate Steps to Take

It is recommended to apply security patches promptly, restrict network access, and monitor for any suspicious activities.

Long-Term Security Practices

Implement robust encryption protocols, conduct regular security audits, and educate users on secure data handling practices.

Patching and Updates

Stay informed about security updates from IBM, apply patches as soon as they are released, and follow best practices to enhance system security.