CVE-2015-1000 in SoftCMS
Summary
by MITRE
Stack-based buffer overflow in the OpenForIPCamTest method in the RTSPVIDEO.rtspvideoCtrl.1 (aka SStreamVideo) ActiveX control in Moxa SoftCMS before 1.3 allows remote attackers to execute arbitrary code via the StrRtspPath parameter.
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Analysis
by VulDB Data Team • 04/11/2018
The vulnerability identified as CVE-2015-1000 represents a critical stack-based buffer overflow flaw within the Moxa SoftCMS software suite, specifically affecting the RTSPVIDEO.rtspvideoCtrl.1 ActiveX control. This vulnerability exists in versions prior to 1.3 and exposes systems to remote code execution attacks through a carefully crafted StrRtspPath parameter. The affected ActiveX control, also known as SStreamVideo, operates within the RTSP (Real-Time Streaming Protocol) video streaming framework, making it particularly dangerous in networked environments where video surveillance systems are deployed.
The technical implementation of this vulnerability stems from improper bounds checking within the OpenForIPCamTest method of the ActiveX control. When processing the StrRtspPath parameter, the software fails to validate the input length against the allocated buffer space on the stack, creating a condition where malicious input can overwrite adjacent memory locations. This classic buffer overflow scenario allows attackers to manipulate the program execution flow by overwriting return addresses, function pointers, or other critical control data structures. The vulnerability directly maps to CWE-121 Stack-based Buffer Overflow, which is classified as a high-severity issue in the Common Weakness Enumeration catalog due to its potential for arbitrary code execution.
The operational impact of this vulnerability extends beyond simple remote code execution, as it provides attackers with complete system compromise capabilities within the context of the vulnerable application. Attackers can leverage this vulnerability to install malware, modify system configurations, or establish persistent backdoors on affected systems. Given that Moxa SoftCMS is commonly deployed in industrial control systems and video surveillance environments, the exploitation of this vulnerability could lead to significant operational disruptions, data breaches, or even physical security compromises. The remote nature of the attack means that adversaries do not require physical access or local network credentials to exploit the vulnerability, making it particularly attractive for large-scale attacks against multiple targets.
Mitigation strategies for CVE-2015-1000 should prioritize immediate patching of affected systems to version 1.3 or later, which contains the necessary fixes for the buffer overflow condition. Organizations should also implement network segmentation to limit exposure of vulnerable ActiveX controls, disable unnecessary ActiveX controls in browser environments, and deploy application whitelisting solutions to prevent execution of untrusted code. From an operational security perspective, regular vulnerability assessments and penetration testing should be conducted to identify similar weaknesses in other ActiveX controls or legacy software components. The ATT&CK framework categorizes this vulnerability under T1190 Exploit Public-Facing Application, emphasizing the need for proper input validation and secure coding practices. Additionally, implementing network monitoring solutions that can detect anomalous RTSP traffic patterns or suspicious parameter values may help identify exploitation attempts before they succeed in compromising systems.