CVE-2014-7688 in Home Improvement
Summary
by MITRE
The Home Improvement (aka com.whomeimprovementapp) application 0.1 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 • 10/15/2024
The vulnerability identified as CVE-2014-7688 represents a critical security flaw in the Home Improvement Android application version 0.1, specifically targeting the application's handling of secure communications. This issue falls under the broader category of insufficient certificate verification mechanisms that can severely compromise the integrity of data transmission between mobile applications and remote servers. The application's failure to properly validate X.509 certificates creates an exploitable weakness that directly violates fundamental security principles governing secure network communications.
The technical flaw manifests in the application's complete absence of SSL certificate validation during secure connections. When an Android application establishes communication with a remote server using HTTPS, it should verify that the server's SSL certificate is valid, properly signed by a trusted certificate authority, and matches the expected domain name. The Home Improvement application bypasses this crucial verification step entirely, allowing attackers to present any certificate during the SSL handshake process without detection. This vulnerability stems from improper implementation of the SSL/TLS protocol stack within the Android application framework, where certificate validation routines are either absent or incorrectly configured.
The operational impact of this vulnerability is severe and multifaceted, creating multiple attack vectors for malicious actors seeking to compromise user data. A man-in-the-middle attacker can exploit this weakness by intercepting communications between the vulnerable application and its servers, then presenting a forged certificate that appears legitimate to the application. This allows the attacker to decrypt and potentially modify sensitive information transmitted by users, including personal data, login credentials, or financial information. The vulnerability directly aligns with CWE-295, which specifically addresses "Improper Certificate Validation," and represents a classic example of how weak cryptographic practices can undermine entire application security models.
This vulnerability enables several attack patterns that are well-documented in the ATT&CK framework, particularly those related to credential access and data interception. Attackers can leverage this weakness to perform session hijacking, steal user authentication tokens, or gain unauthorized access to backend systems that the application communicates with. The impact extends beyond simple data theft, as compromised applications can serve as entry points for broader network infiltration attempts, potentially leading to lateral movement within corporate networks or access to additional systems. Organizations should note that this vulnerability represents a fundamental failure in the application's security architecture and requires immediate remediation.
The recommended mitigations for this vulnerability involve implementing proper SSL certificate validation mechanisms within the application's network communication layer. Developers must ensure that the application validates certificate chains against trusted certificate authorities, verifies domain name matching, and implements certificate pinning where appropriate. The fix should address the root cause by incorporating robust certificate verification routines that align with industry standards such as those specified in RFC 5280 for X.509 certificate validation. Additionally, security reviews should include comprehensive testing of certificate validation logic to prevent similar issues in future development cycles. Organizations should also consider implementing network monitoring to detect potential exploitation attempts and establish incident response procedures specifically addressing this class of vulnerability.