Stack-based buffer overflow in WebAccess/SCADA - CVE-2019-3954
Published: September 19, 2019
Vulnerability identifier: #VU21204
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-3954
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists in the "VdBroadWinGetLocalDataLogEx()" function in "viewdll1.dll" due to a boundary error when processing an IOCTL 81024 RPC message. A remote unauthenticated attacker can send a specially crafted IOCTL 81024 RPC message to the application, trigger stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
WebAccess/SCADA
How to mitigate CVE-2019-3954
Install updates from vendor's website.
WebAccess/SCADA - update to 8.4.1