CVE-2015-2979 in yoyaku_v41
Summary
by MITRE
Webservice-DIC yoyaku_v41 allows remote attackers to execute arbitrary OS commands via unspecified vectors.
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Analysis
by VulDB Data Team • 07/27/2017
The vulnerability identified as CVE-2015-2979 affects the Webservice-DIC yoyaku_v41 application, presenting a critical remote code execution flaw that enables attackers to execute arbitrary operating system commands on the affected system. This vulnerability resides within a web service implementation that processes user inputs without proper sanitization or validation, creating a pathway for malicious actors to inject and execute command-line instructions directly on the target server. The unspecified vectors suggest that the vulnerability could be exploited through multiple input points within the web service interface, potentially including form fields, API endpoints, or parameter handling mechanisms.
From a technical perspective, this vulnerability represents a classic command injection flaw that aligns with CWE-77 and CWE-88 categories, where user-supplied data is directly incorporated into system commands without adequate input filtering or escaping mechanisms. The attack surface is particularly concerning as it allows remote exploitation without requiring authentication, making the vulnerability accessible to any attacker with network connectivity to the affected service. The implementation likely fails to properly validate or sanitize input parameters that are subsequently used in shell command execution contexts, enabling attackers to append malicious commands that get executed with the privileges of the web service process.
The operational impact of this vulnerability is severe and multifaceted, as it provides attackers with complete control over the affected system. Successful exploitation could lead to data breaches, system compromise, lateral movement within network environments, and potential use as a foothold for further attacks. The vulnerability could be leveraged to establish persistent access, exfiltrate sensitive information, or deploy additional malware. From an attacker's perspective, this represents a high-value target as it eliminates the need for additional exploitation techniques to gain system-level access. The vulnerability also aligns with ATT&CK technique T1059.001 for command and scripting interpreter, where adversaries use legitimate system tools to execute commands.
Mitigation strategies should focus on implementing comprehensive input validation and sanitization mechanisms throughout the application's codebase, particularly in areas where system commands are constructed from user input. The implementation of proper parameterized queries and command execution frameworks that prevent shell injection is essential. Additionally, network segmentation and access controls should be enforced to limit exposure of vulnerable services. Regular security assessments and code reviews are critical to identify similar vulnerabilities in other applications. The remediation should also include implementing web application firewalls and monitoring for suspicious command execution patterns. Organizations should prioritize patching or upgrading the affected Webservice-DIC yoyaku_v41 implementation to address this vulnerability and prevent potential exploitation by threat actors.