PT-2018-3096 · Advantech · Advantech Webaccess

Published 2018-10-18 · Updated 2020-08-24 · CVE-2018-15704

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Advantech WebAccess versions 8.3.2 and below

Description The issue is related to a stack buffer overflow. A remote authenticated attacker could potentially exploit this by sending a crafted HTTP request to "broadweb/system/opcImg.asp". The vulnerability allows a remote attacker to potentially execute arbitrary code using a specially crafted HTTP request.

Recommendations For Advantech WebAccess versions 8.3.2 and below, consider restricting access to the broadweb/system/opcImg.asp endpoint until a patch is available. As a temporary workaround, limit the use of the BwOpcBs.exe executable to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Buffer Overflow

Weakness Enumeration

CWE-787

CWE-119

Related Identifiers

BDU:2019-03926

CVE-2018-15704

Affected Products

Advantech Webaccess

References · 6

• 🔥 https://tenable.com/security/research/tra-2018-33 · Exploit
• https://security-tracker.debian.org/tracker/CVE-2018-15704 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-15704 · Security Note
• https://bdu.fstec.ru/vul/2019-03926 · Security Note
• https://osv.dev/vulnerability/CVE-2018-15704 · Vendor Advisory
• https://cvedetails.com/cve/CVE-2018-15704 · Note