CVE-2019-10764 : Exploit Details and Defense Strategies

A timing attack vulnerability in elliptic-php versions prior to 1.0.6 could lead to the practical recovery of the long-term private key under specific conditions.

Understanding CVE-2019-10764

This CVE involves a timing attack vulnerability in the elliptic-php library.

What is CVE-2019-10764?

In versions of elliptic-php prior to 1.0.6, a timing attack could allow the retrieval of the library's long-term private key due to a leak in the scalar's bit-length during scalar multiplication on an elliptic curve.

The Impact of CVE-2019-10764

The vulnerability could result in the practical recovery of the long-term private key under specific circumstances, posing a significant security risk.

Technical Details of CVE-2019-10764

This section provides detailed technical information about the CVE.

Vulnerability Description

Timing attacks in elliptic-php versions prior to 1.0.6 may enable the retrieval of the long-term private key due to a leak in the scalar's bit-length during scalar multiplication.

Affected Systems and Versions

Product: simplito/elliptic-php
Vendor: n/a
Versions Affected: All versions prior to version 2.5

Exploitation Mechanism

The vulnerability could be exploited through a timing attack, allowing malicious actors to recover the long-term private key.

Mitigation and Prevention

Protecting systems from CVE-2019-10764 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update to version 2.5 or above of elliptic-php to mitigate the vulnerability.
Monitor for any unusual activities that could indicate a timing attack.

Long-Term Security Practices

Implement secure coding practices to prevent timing attacks.
Regularly update and patch software to address known vulnerabilities.
Conduct security audits and assessments to identify and mitigate potential risks.
Educate developers and users about secure cryptographic implementations.

Patching and Updates

Apply patches provided by the library or vendor promptly to address the timing attack vulnerability.