CVE-2017-3218 in Magician
Summary
by MITRE
Samsung Magician 5.0 fails to validate TLS certificates for HTTPS software update traffic. Prior to version 5.0, Samsung Magician uses HTTP for software updates.
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Analysis
by VulDB Data Team • 12/25/2024
The vulnerability identified as CVE-2017-3218 affects Samsung Magician version 5.0 and represents a critical security flaw in the software update mechanism of Samsung's storage management utility. This issue stems from the application's failure to properly validate TLS certificates during HTTPS communication, creating a significant attack surface that could be exploited by malicious actors. The vulnerability is particularly concerning because it undermines the fundamental security assurances that TLS encryption is designed to provide, allowing potential attackers to perform man-in-the-middle attacks against the update process. Prior to version 5.0, the software update mechanism used HTTP instead of HTTPS, which meant that all update traffic was transmitted in plaintext without any encryption. This plaintext transmission made the system vulnerable to eavesdropping and modification attacks, as demonstrated by the industry standard CWE-319, which specifically addresses the exposure of sensitive information through improper use of encryption. The transition to HTTPS in version 5.0 was intended to address these concerns, but the failure to properly validate TLS certificates negated these security improvements. The operational impact of this vulnerability extends beyond simple data interception, as it enables attackers to inject malicious firmware or software updates into the system, potentially compromising the integrity of the storage devices managed by Samsung Magician. This represents a direct violation of the principle of secure update mechanisms as outlined in the NIST SP 800-53 security controls, which emphasize the importance of authenticating update sources and ensuring the integrity of software distributions. The flaw creates an environment where attackers can impersonate legitimate update servers and deliver malicious payloads to target systems. Attackers could leverage this vulnerability to perform supply chain attacks against Samsung Magician users, particularly targeting enterprise environments where storage management software is widely deployed. The vulnerability aligns with the ATT&CK technique T1027 - Obfuscated Files or Information, as attackers could potentially use the compromised update mechanism to deliver malicious code disguised as legitimate software updates. Furthermore, this weakness contributes to the broader category of trust exploitation attacks as defined in the MITRE ATT&CK framework, where adversaries manipulate trust relationships between systems and their update mechanisms. Organizations using Samsung Magician 5.0 and later versions face significant risk of compromise, as the vulnerability creates a persistent attack vector that could be exploited across multiple deployment scenarios. The lack of proper certificate validation means that even if an attacker cannot perfectly replicate the legitimate certificate, they could potentially use certificate pinning bypass techniques or exploit known vulnerabilities in the certificate validation process to establish malicious communication channels. This vulnerability also highlights the importance of proper security implementation practices as outlined in the OWASP Top Ten, particularly the risk of insecure communication channels and the failure to properly validate security mechanisms. The attack surface is particularly wide given that Samsung Magician is commonly deployed on both consumer and enterprise storage devices, making it a potentially attractive target for adversaries seeking to establish persistent access or cause system disruptions through compromised firmware updates.
The technical flaw manifests in the application's improper handling of TLS certificate validation routines, which should have implemented strict certificate chain validation, hostname checking, and certificate expiration verification. This failure to implement proper certificate validation protocols creates a trust relationship that can be easily manipulated by attackers. The vulnerability is categorized under CWE-295, which addresses the improper certificate validation in TLS implementations, and specifically relates to the weakness of not properly validating certificate authorities or certificate chains. The implementation appears to rely on basic certificate existence checks rather than comprehensive validation that would be required for secure HTTPS communication. This design flaw means that the application accepts any certificate that presents itself as valid, without properly verifying that the certificate was issued by a trusted authority or that it matches the expected hostname for the update server. The consequences of this flaw are severe as it effectively neutralizes the security benefits of HTTPS encryption, allowing attackers to establish secure communication channels with malicious servers while maintaining the appearance of legitimate update traffic. The vulnerability also demonstrates a lack of proper security architecture implementation, as the application should have implemented certificate pinning or at minimum required strict certificate validation before accepting any update from a remote server. This issue represents a fundamental failure in the security design principle of defense in depth, where multiple layers of security should be implemented to protect against various attack vectors. The vulnerability is particularly dangerous in enterprise environments where storage management software is often centrally managed and deployed across multiple systems, creating a potential attack path that could compromise entire networks through a single compromised update mechanism. The lack of proper certificate validation also means that attackers could potentially exploit known vulnerabilities in certificate authorities or use compromised certificates to gain unauthorized access to systems. This vulnerability requires immediate remediation through either a software patch that properly implements certificate validation or through network-level controls that restrict access to update servers to trusted sources. Organizations should implement additional monitoring and detection mechanisms to identify potential exploitation attempts, as the vulnerability could be used to deliver malware payloads that would be difficult to detect through traditional security controls. The flaw also underscores the importance of regular security assessments and vulnerability scanning of third-party applications, particularly those with privileged access to system resources or those that handle critical system updates.