ABB MicroSCADA Wserver wserver.exe EXECUTE Remote Code Execution Vulnerability
Vulnerability Details
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of ABB MicroSCADA Wserver. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the wserver.exe component which listens on TCP port 12221. This component user-supplied data directly to a CreateProcessA call. By supplying a UNC path to a controlled binary a remote attacker can execute arbitrary code under the context of the vulnerable process.
Additional Details
ABB has issued an update to correct this vulnerability. More details can be found at:
http://www05.abb.com/global/scot/scot229.nsf/veritydisplay/41ccfa8ccd0431e6c1257c1200395574/$file/ABB_SoftwareVulnerabilityHandlingAdvisory_ABB-VU-PSAC-1MRS235805.pdf
Disclosure Timeline
- 2013-02-13 - Vulnerability reported to vendor
- 2013-11-24 - Coordinated public release of advisory
Credit
Brian Gorenc
HP Zero Day Initiative
