PT-2021-17763 · Dr.Web · Dr.Web Firewall

Sh0R · Published 2021-09-24 · Updated 2021-10-06 · CVE-2021-28130

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: Dr.Web Firewall version 12.5.2.4160

Description: The issue concerns Dr.Web Firewall on Windows, where it incorrectly restricts applications signed by Dr.Web, allowing a custom payload within a legitimate binary, such as frwl svc.exe, to bypass firewall filters.

Recommendations: For Dr.Web Firewall version 12.5.2.4160, consider restricting access to the frwl svc.exe binary until a patch is available to prevent potential bypass of firewall filters. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Uncontrolled Search Path Element

Weakness Enumeration

CWE-427

Related Identifiers

CVE-2021-28130

Affected Products

Dr.Web Firewall

References · 5

• 🔥 https://habr.com/ru/company/pm/blog/579328 · Exploit
• https://news.drweb.ru/show/?i=14180&lng=ru · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-28130 · Security Note
• https://osv.dev/vulnerability/CVE-2021-28130 · Vendor Advisory
• https://t.me/cibsecurity/29393 · Telegram Post