PT-2023-5374 · D Link · D-Link Dir-816 A2

Published 2023-09-21 · Updated 2023-09-22 · CVE-2023-43240

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 ipportFilter function via the sip address parameter. This can 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 ipportFilter function or restricting access to the sip address parameter until a patch is available. As a temporary workaround, avoid using the sip address parameter in the affected function to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this issue.

Exploit

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

BDU:2023-06002

CVE-2023-43240

Affected Products

D-Link Dir-816 A2

References · 10

• 🔥 https://github.com/peris-navince/founded-0-days/blob/main/Dlink/816/ipportFilter/1.md · Exploit
• https://dlink.com/en/security-bulletin · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-43240 · Security Note
• https://osv.dev/vulnerability/CVE-2023-43240 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-06002 · Security Note
• https://t.me/cvenotify/58288 · Telegram Post
• https://t.me/cibsecurity/70881 · Telegram Post
• https://twitter.com/CVEnew/status/1704841819786559807 · Twitter Post
• https://twitter.com/cracbot/status/1705099661412123012 · Twitter Post
• https://twitter.com/VulmonFeeds/status/1704866646349766829 · Twitter Post