CVE-2018-5762 : Vulnerability Insights and Analysis

CVE-2018-5762 was published on February 26, 2018, and involves a vulnerability in the TCP/IP networking module of Unisys ClearPath MCP systems. Remote attackers could potentially decrypt TLS ciphertext data by exploiting a Bleichenbacher RSA padding oracle vulnerability.

Understanding CVE-2018-5762

This CVE identifies a security issue that could allow attackers to decrypt TLS data on affected systems.

What is CVE-2018-5762?

The vulnerability in the TCP/IP networking module of Unisys ClearPath MCP systems allows remote attackers to decrypt TLS ciphertext data by exploiting a Bleichenbacher RSA padding oracle, also known as a ROBOT attack.

The Impact of CVE-2018-5762

This vulnerability poses a significant risk as it could lead to the decryption of sensitive TLS data, potentially compromising the confidentiality of communications.

Technical Details of CVE-2018-5762

This section provides more technical insights into the vulnerability.

Vulnerability Description

The TLS implementation in Unisys ClearPath MCP systems with specific TCP-IP-SW versions allows remote attackers to decrypt TLS ciphertext data through a Bleichenbacher RSA padding oracle vulnerability.

Affected Systems and Versions

Unisys ClearPath MCP systems with TCP-IP-SW versions prior to 58.160, 059.1a.17 (IC #17), and 60.044

Exploitation Mechanism

Attackers exploit the Bleichenbacher RSA padding oracle vulnerability in the TCP/IP networking module to decrypt TLS ciphertext data.

Mitigation and Prevention

Protecting systems from CVE-2018-5762 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update affected systems to versions 58.160, 059.1a.17 (IC #17), or 60.044 to mitigate the vulnerability
Monitor network traffic for any signs of unauthorized decryption attempts

Long-Term Security Practices

Regularly update and patch systems to address known vulnerabilities
Implement network segmentation and access controls to limit exposure to potential attacks

Patching and Updates

Apply patches provided by Unisys for the TCP-IP-SW versions to address the Bleichenbacher RSA padding oracle vulnerability