CVE-2017-15361 Explained : Impact and Mitigation

The RSA library 1.02.013 in Infineon Trusted Platform Module (TPM) firmware has a vulnerability that affects various versions. This vulnerability in RSA key generation can be exploited by attackers to bypass cryptographic protection mechanisms.

Understanding CVE-2017-15361

This CVE involves a vulnerability in the RSA key generation process within the Infineon TPM firmware, impacting several systems and technologies.

What is CVE-2017-15361?

The vulnerability in the RSA key generation process in the Infineon TPM firmware allows attackers to circumvent cryptographic protection mechanisms, leading to potential security breaches.

The Impact of CVE-2017-15361

Attackers can exploit the vulnerability to bypass cryptographic protections through targeted attacks known as ROCA.
Systems like BitLocker with TPM 1.2, YubiKey 4, PGP key generation, and Chrome OS encryption feature are susceptible.

Technical Details of CVE-2017-15361

This section provides detailed technical insights into the vulnerability.

Vulnerability Description

The vulnerability in the RSA key generation process in the Infineon TPM firmware enables attackers to compromise cryptographic protections, posing a significant security risk.

Affected Systems and Versions

Versions before 4.34, 6.43, and 133.33 of the Infineon TPM firmware are vulnerable.

Exploitation Mechanism

Attackers can exploit the RSA key generation flaw to undermine cryptographic safeguards and launch targeted attacks.

Mitigation and Prevention

Protecting systems from CVE-2017-15361 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update affected systems to patched versions of the Infineon TPM firmware.
Implement additional security measures to mitigate the risk of exploitation.

Long-Term Security Practices

Regularly monitor for security advisories and updates related to the Infineon TPM firmware.
Conduct thorough security assessments to identify and address vulnerabilities proactively.

Patching and Updates

Apply patches and updates provided by Infineon and other relevant vendors to address the vulnerability effectively.