CVE-2014-6710 in Kids Coloring Game
Summary
by MITRE
The Chifro Kids Coloring Game (aka com.chifro.kids_coloring_game) application 1.6 for Android does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.
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Analysis
by VulDB Data Team • 09/13/2024
The Chifro Kids Coloring Game application version 1.6 for Android presents a critical security vulnerability through its improper implementation of SSL/TLS certificate validation mechanisms. This flaw resides in the application's cryptographic security framework where it fails to perform essential X.509 certificate verification processes during secure communication with remote servers. The vulnerability fundamentally undermines the integrity of the secure communication channel that should normally be established through SSL/TLS protocols, leaving users exposed to sophisticated man-in-the-middle attack scenarios.
This security weakness represents a direct violation of established cryptographic best practices and falls under the category of improper certificate validation as defined by CWE-295. The application's failure to validate server certificates means that any attacker capable of intercepting network traffic can present a fraudulent certificate that the application will accept without proper verification. This creates a dangerous trust relationship where the application cannot distinguish between legitimate servers and malicious actors who have successfully impersonated those servers through certificate spoofing techniques.
The operational impact of this vulnerability extends beyond simple data interception, as it enables attackers to obtain sensitive information from users of the application. Given that this is a children's coloring game application, the potential for collecting personal information, user data, or even financial information through compromised communication channels poses significant privacy and security risks. The vulnerability affects all communication between the application and its backend servers, potentially exposing user accounts, preferences, and any data transmitted through the insecure connection.
From a threat modeling perspective, this vulnerability aligns with ATT&CK technique T1041 for Exfiltration Over C2 Channel and T1566 for Phishing, as attackers can exploit the insecure connection to harvest user data. The attack vector requires minimal sophistication since the application's trust model is fundamentally flawed, making it accessible to attackers with basic network interception capabilities. The vulnerability exists in the application's network security implementation and directly impacts the confidentiality and integrity of data transmitted through the application's communication channels.
Mitigation strategies should focus on implementing proper SSL/TLS certificate validation mechanisms within the application, including certificate pinning, certificate chain validation, and the enforcement of secure cryptographic protocols. The application should be updated to verify certificate authorities, check certificate expiration dates, and validate certificate signatures against trusted root certificates. Additionally, developers should implement certificate transparency checks and consider implementing additional security measures such as certificate stapling and secure key storage practices to prevent the exploitation of this vulnerability. The fix should ensure that all network communications adhere to industry standards for secure communication and proper cryptographic implementation as outlined in NIST SP 800-52 and RFC 5280.