CVE-2017-2103 : Security Advisory and Response

The LaLa Call App for Android version 2.4.7 and earlier fails to authenticate X.509 certificates from SSL servers, potentially allowing attackers to deceive users and access sensitive data.

Understanding CVE-2017-2103

The vulnerability in the LaLa Call App for Android version 2.4.7 and earlier poses a security risk due to its failure to verify SSL certificates.

What is CVE-2017-2103?

The Android 2.4.7 version and earlier of the LaLa Call App lacks proper authentication of X.509 certificates from SSL servers, enabling malicious actors to impersonate servers and exploit this weakness to obtain sensitive information.

The Impact of CVE-2017-2103

This vulnerability could lead to man-in-the-middle attacks, where attackers can intercept communication between users and servers, potentially resulting in data theft and unauthorized access.

Technical Details of CVE-2017-2103

The technical aspects of the CVE-2017-2103 vulnerability provide insight into its nature and potential risks.

Vulnerability Description

The LaLa Call App for Android 2.4.7 and earlier does not properly verify X.509 certificates from SSL servers, creating an opportunity for attackers to use crafted certificates to spoof servers and gain access to sensitive data.

Affected Systems and Versions

Product: LaLa Call App for Android
Vendor: K-Opticom Corporation
Versions Affected: ver2.4.7 and earlier

Exploitation Mechanism

Attackers can exploit this vulnerability by presenting specially crafted certificates to deceive the app into trusting malicious servers, enabling unauthorized access to sensitive information.

Mitigation and Prevention

Addressing CVE-2017-2103 requires immediate actions and long-term security practices to enhance protection.

Immediate Steps to Take

Update the LaLa Call App to the latest version that includes the fix for SSL certificate verification.
Avoid connecting to unsecured or unknown Wi-Fi networks to minimize exposure to potential attacks.

Long-Term Security Practices

Implement a robust SSL certificate validation process in all applications to prevent similar vulnerabilities.
Educate users about the risks of unsecured connections and the importance of verifying SSL certificates.

Patching and Updates

Regularly check for updates and patches for the LaLa Call App to ensure that known vulnerabilities are promptly addressed.