PT-2023-5373 · D Link · D-Link Dir-816 A2

Published 2023-09-21 · Updated 2024-09-25 · CVE-2023-43239

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions D-Link DIR-816 A2 version 1.10CNB05

Description The issue is related to a stack overflow in the showMACfilterMAC function of the D-Link DIR-816 A2 router's firmware, which can be exploited via the flag 5G parameter. This could allow a remote attacker to impact the confidentiality, integrity, and availability of protected information.

Recommendations For D-Link DIR-816 A2 version 1.10CNB05, consider disabling the showMACfilterMAC function or restricting access to the flag 5G parameter until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Stack Overflow

Memory Corruption

Weakness Enumeration

CWE-121

CWE-787

Related Identifiers

BDU:2023-06001

CVE-2023-43239

Affected Products

D-Link Dir-816 A2

References · 10

• 🔥 https://github.com/peris-navince/founded-0-days/blob/main/Dlink/816/showMACfilterMAC/1.md · Exploit
• https://dlink.com/en/security-bulletin · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-43239 · Security Note
• https://bdu.fstec.ru/vul/2023-06001 · Security Note
• https://osv.dev/vulnerability/CVE-2023-43239 · Vendor Advisory
• https://twitter.com/CVEnew/status/1704841818259816832 · Twitter Post
• https://twitter.com/cracbot/status/1705099659725898183 · Twitter Post
• https://t.me/cibsecurity/70885 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1704865379951038493 · Twitter Post
• https://t.me/cvenotify/58289 · Telegram Post