CVE-2015-2980 in Yodobashi
Summary
by MITRE
The Yodobashi application 1.2.1.0 and earlier for Android allows remote attackers to execute arbitrary Java methods, and consequently obtain sensitive information or execute OS commands, via a crafted HTML document.
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Analysis
by VulDB Data Team • 09/23/2017
The vulnerability identified as CVE-2015-2980 represents a critical remote code execution flaw in the Yodobashi mobile application version 1.2.1.0 and earlier for Android platforms. This security weakness stems from inadequate input validation and sanitization mechanisms within the application's web view component that processes external HTML content. The flaw enables attackers to craft malicious HTML documents that can trigger arbitrary Java method execution within the application's runtime environment, creating a severe attack surface that compromises the integrity and confidentiality of the affected system.
The technical implementation of this vulnerability involves the application's failure to properly sanitize user-supplied HTML content that is rendered within its embedded web browser component. When the application processes a crafted HTML document containing malicious JavaScript or Java applet code, it inadvertently executes these commands with the privileges of the application itself. This behavior aligns with CWE-74, which describes improper neutralization of special elements used in a different context, and represents a classic example of a code injection vulnerability that allows attackers to bypass normal access controls. The vulnerability specifically manifests through the application's web view component that handles external content without adequate security restrictions or sandboxing mechanisms.
From an operational perspective, this vulnerability poses significant risks to both end-users and the organization maintaining the application. Attackers can exploit this flaw to execute arbitrary operating system commands, access sensitive user data, and potentially escalate privileges within the application's security boundaries. The remote nature of the attack means that threat actors can compromise affected devices from anywhere on the internet without requiring physical access or prior authentication. This vulnerability directly impacts the CIA triad by enabling confidentiality breaches through information disclosure, integrity violations through unauthorized command execution, and availability concerns through potential system compromise. The attack vector typically involves social engineering campaigns where users are tricked into visiting malicious websites or opening compromised email attachments containing the malicious HTML content.
The mitigation strategies for CVE-2015-2980 should focus on immediate application updates and comprehensive security hardening measures. Organizations should prioritize updating the Yodobashi application to versions that address this vulnerability through proper input validation and content sanitization. The implementation of a secure coding framework should include disabling unnecessary JavaScript execution within web views, implementing strict content security policies, and employing sandboxing mechanisms to isolate external content processing. Additionally, network-level defenses such as web application firewalls and intrusion detection systems should be configured to monitor for suspicious HTML content patterns that may indicate exploitation attempts. This vulnerability demonstrates the importance of following secure coding practices and adheres to ATT&CK technique T1059, which covers command and scripting interpreter usage, as attackers can leverage this vulnerability to execute OS commands remotely and establish persistent access to compromised devices.