CVE-2018-11057 : Vulnerability Insights and Analysis

The RSA BSAFE Micro Edition Suite, versions before 4.0.11 and before 4.1.6.1, is vulnerable to a Covert Timing Channel attack, potentially leading to RSA key recovery.

Understanding CVE-2018-11057

This CVE involves a vulnerability in the RSA BSAFE Micro Edition Suite that could allow attackers to exploit a Covert Timing Channel.

What is CVE-2018-11057?

The RSA BSAFE Micro Edition Suite, versions prior to 4.0.11 and 4.1.6.1, is susceptible to a Covert Timing Channel vulnerability, enabling a Bleichenbacher attack on RSA decryption.

The Impact of CVE-2018-11057

CVSS Base Score: 5.9 (Medium Severity)
Attack Vector: Network
Confidentiality Impact: High
Attack Complexity: High
This vulnerability could lead to the recovery of an RSA key through remote attacks.

Technical Details of CVE-2018-11057

Vulnerability Description

The vulnerability in RSA BSAFE Micro Edition Suite allows for a Covert Timing Channel attack during RSA decryption, potentially resulting in RSA key compromise.

Affected Systems and Versions

Affected Product: RSA BSAFE Micro Edition Suite
Vendor: RSA
Vulnerable Versions:
Versions before 4.0.11 (in 4.0.x)
Versions before 4.1.6.1 (in 4.1.x)

Exploitation Mechanism

The vulnerability can be exploited remotely, allowing attackers to perform a Bleichenbacher attack on RSA decryption, leading to potential RSA key recovery.

Mitigation and Prevention

Immediate Steps to Take

Update RSA BSAFE Micro Edition Suite to versions 4.0.11 or higher for 4.0.x and 4.1.6.1 or higher for 4.1.x to mitigate the vulnerability.
Monitor network traffic for any suspicious activity that could indicate exploitation of the Covert Timing Channel.

Long-Term Security Practices

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

Patching and Updates

Apply security patches provided by RSA to address the Covert Timing Channel vulnerability in the RSA BSAFE Micro Edition Suite.