PT-2023-5371 · D Link · D-Link Dir-816 A2

Published 2023-09-21 · Updated 2024-09-25 · CVE-2023-43236

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 dir setWanWifi function, which can be triggered via the statuscheckpppoeuser parameter. This can potentially allow a remote attacker to impact the confidentiality, integrity, and availability of protected information.

Recommendations For D-Link DIR-816 A2 version 1.10CNB05, as a temporary workaround, consider disabling the dir setWanWifi function until a patch is available. Restrict access to the statuscheckpppoeuser parameter in the affected API endpoint to minimize the risk of exploitation. 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:2023-05999

CVE-2023-43236

Affected Products

D-Link Dir-816 A2

References · 10

• 🔥 https://github.com/peris-navince/founded-0-days/blob/main/Dlink/816/dir_setWanWifi/1.md · Exploit
• https://dlink.com/en/security-bulletin · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-05999 · Security Note
• https://osv.dev/vulnerability/CVE-2023-43236 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-43236 · Security Note
• https://twitter.com/cracbot/status/1705099654835442066 · Twitter Post
• https://t.me/cvenotify/58292 · Telegram Post
• https://t.me/cibsecurity/70884 · Telegram Post
• https://twitter.com/CVEnew/status/1704835177833480347 · Twitter Post
• https://twitter.com/VulmonFeeds/status/1704865126627619002 · Twitter Post