PT-2021-5146 · Fatek Automation · Winproladder

Natnael Samson + 2 · Published 2021-10-07 · Updated 2022-10-25 · CVE-2021-38436

Positive Technologies (AI Summary)

CVSS v2.0

9.3

High

Base vector

AV:N/AC:M/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions FATEK Automation WinProladder versions 3.30 and prior

Description The issue is related to the lack of proper validation of user-supplied data when parsing project files, which could result in a memory-corruption condition. This could allow an attacker to execute arbitrary code in the context of the current process. The vulnerability is also described as a buffer overflow condition during the syntactic analysis of project files, which could be exploited by a remote attacker using a specially crafted file.

Recommendations For FATEK Automation WinProladder versions 3.30 and prior, update to a version that includes proper validation of user-supplied data when parsing project files to prevent memory-corruption conditions. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Buffer Overflow

Memory Corruption

Weakness Enumeration

CWE-119

CWE-787

Related Identifiers

BDU:2021-05941

CVE-2021-38436

Affected Products

Winproladder

References · 7

• https://bdu.fstec.ru/vul/2021-05941 · Security Note
• https://safe-surf.ru/upload/VULN/VULN-20211012.2.pdf · Security Note
• https://osv.dev/vulnerability/CVE-2021-38436 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-38436 · 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/30685 · Telegram Post