PT-2021-22103 · Advantech · Advantech Webaccess

Published 2021-10-18 · Updated 2022-02-02 · CVE-2021-38389

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Advantech WebAccess versions 9.02 and prior

Description The issue is a stack-based buffer overflow that may allow an attacker to remotely execute code.

Recommendations For Advantech WebAccess versions 9.02 and prior, update to a version later than 9.02 to resolve the issue.

Fix

Memory Corruption

Stack Overflow

Weakness Enumeration

CWE-787

CWE-121

Related Identifiers

CVE-2021-38389

ZDI-22-259

Affected Products

Advantech Webaccess

References · 5

• https://zerodayinitiative.com/advisories/ZDI-22-259 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-38389 · Security Note
• https://osv.dev/vulnerability/CVE-2021-38389 · Vendor Advisory
• https://t.me/cibsecurity/30680 · Telegram Post
• https://us-cert.cisa.gov/ics/advisories/icsa-21-285-02 · Note