ABB MicroSCADA Vulnerability (Dec 20, 2013)


ABB MicroSCADA provides monitoring, gateway, integrate control, redundancy, reporting and other functionalities to substation automation. Upon installation of ABB MicroSCADA, an program named wserver.exe is also deployed.

A stack buffer overflow vulnerability exists in wserver.exe of ABB MicroSCADA. The vulnerability is due to insufficient input validation of remote execution calls. A remote attacker can exploit this vulnerability by sending crafted calls to wserver.exe. Successful exploitation could lead to arbitrary code execution in the security context of the vulnerable program.

Dell SonicWALL has released an IPS signature to detect and block specific exploitation attempts targeting this vulnerability. The signature is listed below:

  • 5178 ABB MicroSCADA Remote Code Execution
Security News
The SonicWall Capture Labs Threat Research Team gathers, analyzes and vets cross-vector threat information from the SonicWall Capture Threat network, consisting of global devices and resources, including more than 1 million security sensors in nearly 200 countries and territories. The research team identifies, analyzes, and mitigates critical vulnerabilities and malware daily through in-depth research, which drives protection for all SonicWall customers. In addition to safeguarding networks globally, the research team supports the larger threat intelligence community by releasing weekly deep technical analyses of the most critical threats to small businesses, providing critical knowledge that defenders need to protect their networks.