PT-2021-4747 · Fatek Automation · Winproladder

Natnael Samson + 2 · Published 2021-10-07 · Updated 2021-10-21 · CVE-2021-38438

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 FATEK Automation WinProladder versions 3.30 and prior

Description The issue is related to a use after free vulnerability when parsing project files, which may allow arbitrary code execution if a valid user opens a malformed project file. This could potentially enable an attacker to execute arbitrary code.

Recommendations For versions 3.30 and prior, avoid opening malformed project files until a patch is available. As a temporary workaround, consider restricting access to project file parsing functionality until a fix is released. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

BDU:2021-05463

CVE-2021-38438

ZDI-21-1170

Affected Products

Winproladder

References · 8

• https://safe-surf.ru/upload/VULN/VULN-20211012.2.pdf · Security Note
• https://osv.dev/vulnerability/CVE-2021-38438 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-05463 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-21-1170 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-38438 · Security Note
• https://cybersecurity-help.cz/vdb/SB2021100805 · Note
• https://us-cert.cisa.gov/ics/advisories/icsa-21-280-06 · Note
• https://t.me/cibsecurity/30692 · Telegram Post