PT-2021-4180 · Delta Electronics · Dopsoft 2

Kimiya · Published 2021-08-09 · Updated 2021-10-04 · CVE-2021-38404

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 Delta Electronic DOPSoft 2 versions 2.00.07 and prior

Description The issue is related to a heap-based buffer overflow in DOPSoft, which is used for programming Delta Electronics DOP-100 series operator panels. This occurs due to improper validation of user-supplied data when parsing specific project files. An attacker could exploit this to execute arbitrary code in the context of the current process.

Recommendations For Delta Electronic DOPSoft 2 versions 2.00.07 and prior, update to a version that properly validates user-supplied data to prevent the heap-based buffer overflow. As a temporary workaround, consider restricting the parsing of specific project files until a patch is available.

Fix

Heap Based Buffer Overflow

Weakness Enumeration

CWE-122

Related Identifiers

BDU:2021-04775

CVE-2021-38404

ZDI-21-951

Affected Products

Dopsoft 2

References · 6

• https://bdu.fstec.ru/vul/2021-04775 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-38404 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-21-951 · Security Note
• https://osv.dev/vulnerability/CVE-2021-38404 · Vendor Advisory
• https://us-cert.cisa.gov/ics/advisories/icsa-21-252-02 · Note
• https://t.me/cibsecurity/29066 · Telegram Post