PT-2021-23655 · Accops · Accops Hyworks Windows Client

Kasif Dekel · Published 2021-12-07 · Updated 2021-12-09 · CVE-2021-42683

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Accops HyWorks Windows Client versions prior to 3.2.8.200

Description A Buffer Overflow issue exists, allowing local attackers to execute arbitrary code in kernel mode or cause a denial of service via specially crafted I/O Request Packets. The IOCTL Handler 0x22001B is involved in this issue, potentially leading to memory corruption and OS crash.

Recommendations For versions prior to 3.2.8.200, update to version 3.2.8.200 or later to resolve the issue. As a temporary workaround, consider restricting access to the IOCTL Handler 0x22001B to minimize the risk of exploitation.

Exploit

Fix

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

CVE-2021-42683

Affected Products

Accops Hyworks Windows Client

References · 5

• 🔥 https://sentinelone.com/labs/usb-over-ethernet-multiple-privilege-escalation-vulnerabilities-in-aws-and-other-major-cloud-services · Exploit
• https://osv.dev/vulnerability/CVE-2021-42683 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-42683 · Security Note
• https://t.me/cvenotify/24379 · Telegram Post
• https://t.me/cibsecurity/33536 · Telegram Post