PT-2020-12986 · Advantech · Advantech Webaccess Node

Z0Mb1E · Published 2020-05-08 · Updated 2020-05-11 · CVE-2020-12018

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Advantech WebAccess Node versions 8.4.4 and prior Advantech WebAccess Node version 9.0.0

Description An out-of-bounds vulnerability exists that may allow access to unauthorized data. This issue affects the WebAccess/SCADA system, specifically the DrawSrv and ViewSrv components, which can be exploited through the IOCTL 0x00002722, leading to an out-of-bounds read information disclosure.

Recommendations For Advantech WebAccess Node versions 8.4.4 and prior, update to a version later than 8.4.4 to resolve the issue. For Advantech WebAccess Node version 9.0.0, consider disabling the DrawSrv and ViewSrv components as a temporary workaround until a patch is available. Restrict access to the IOCTL 0x00002722 to minimize the risk of exploitation.

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2020-12018

ZDI-20-628

ZDI-20-630

Affected Products

Advantech Webaccess Node

References · 6

• https://zerodayinitiative.com/advisories/ZDI-20-628 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-12018 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-20-630 · Security Note
• https://osv.dev/vulnerability/CVE-2020-12018 · Vendor Advisory
• https://us-cert.gov/ics/advisories/icsa-20-128-01 · Note
• https://t.me/cvenotify/3666 · Telegram Post