PT-2021-20013 · Advantech · Advantech Webaccess Hmi Designer

Chizuru Toyama + 1 · Published 2021-04-28 · Updated 2021-07-01 · CVE-2021-33000

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Advantech WebAccess HMI Designer versions 2.1.9.95 and prior

Description The issue is related to parsing maliciously crafted project files, which can lead to a heap-based buffer overflow. This may allow an attacker to execute arbitrary code, but user interaction is required.

Recommendations For Advantech WebAccess HMI Designer versions 2.1.9.95 and prior, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Heap Based Buffer Overflow

Memory Corruption

Weakness Enumeration

CWE-122

CWE-787

Related Identifiers

CVE-2021-33000

ZDI-21-487

ZDI-21-490

Affected Products

Advantech Webaccess Hmi Designer

References · 5

• https://osv.dev/vulnerability/CVE-2021-33000 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-33000 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-21-487 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-21-490 · Security Note
• https://us-cert.cisa.gov/ics/advisories/icsa-21-173-01 · Note