#VU27638 Heap-based buffer overflow in Advantech WebAccess
Published: May 11, 2020
Vulnerability identifier: #VU27638
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: N/A
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Advantech WebAccess
Advantech WebAccess
Software vendor:
Advantech Co., Ltd
Advantech Co., Ltd
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the implementation of IOCTL 0x00002723 in ViewSrv.dll. A remote attacker can trick the victim to visit a specially crafted web page, trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.