PT-2024-14936 · Sonicwall · Netextender+1

Published 2024-01-16 · Updated 2024-01-29 · CVE-2023-6340

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions SonicWall Capture Client version 3.7.10 NetExtender client versions 10.2.337 and earlier

Description The issue is related to a Denial-of-Service (DoS) caused by a Stack-based Buffer Overflow vulnerability in the sfpmonitor.sys driver. This vulnerability allows an attacker to craft a specific query to overwrite kernel memory, potentially leading to code execution.

Recommendations For SonicWall Capture Client version 3.7.10, update to a version that does not include the vulnerable sfpmonitor.sys driver. For NetExtender client versions 10.2.337 and earlier, update to a version that does not include the vulnerable sfpmonitor.sys driver. As a temporary workaround, consider disabling the sfpmonitor.sys driver until a patch is available.

Fix

Memory Corruption

Stack Overflow

Weakness Enumeration

CWE-787

CWE-121

Related Identifiers

CVE-2023-6340

Affected Products

Netextender

Sonicwall Capture Client

References · 9

• https://osv.dev/vulnerability/CVE-2023-6340 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-6340 · Security Note
• https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0019 · Vendor Advisory
• https://twitter.com/G1ND1L4/status/1747173292731949074 · Twitter Post
• https://twitter.com/CVEnew/status/1747787557503451555 · Twitter Post
• https://t.me/cvenotify/67810 · Telegram Post
• https://t.me/cvenotify/69110 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1747795108651536488 · Twitter Post
• https://twitter.com/autumn_good_35/status/1747453913182441616 · Twitter Post