Stack-based buffer overflow in WebAccess/SCADA - CVE-2019-3975
Published: September 19, 2019
Vulnerability identifier: #VU21203
CSH Severity: High
CVSS v4.0: 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/E:U/U:Amber
CVE-ID: CVE-2019-3975
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Advantech Co., Ltd
Affected software:
WebAccess/SCADA
WebAccess/SCADA
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists in the "GetUserPasswd" function in "BwPAlarm.dll" due to a boundary error when processing an IOCTL 70603 RPC message. A remote unauthenticated attacker can send a specially crafted IOCTL 70603 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.
How to mitigate CVE-2019-3975
Install update from vendor's website.