PT-2023-5766 · D Link · D-Link Dir-823G

Published 2023-10-05 · Updated 2024-09-19 · CVE-2023-44837

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions D-Link DIR-823G version A1V1.0.2B05

Description The issue is related to a buffer overflow in the SetWanSettings function via the Password parameter. This allows attackers to cause a Denial of Service (DoS) via a crafted input. The vulnerability is associated with the lack of size checking for input data, which can be exploited by a remote attacker to cause a service disruption.

Recommendations For D-Link DIR-823G version A1V1.0.2B05, as a temporary workaround, consider disabling the SetWanSettings function until a patch is available. Restrict access to the Password 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 vulnerability.

Exploit

Buffer Overflow

Weakness Enumeration

CWE-119

CWE-120

Related Identifiers

BDU:2023-06448

CVE-2023-44837

Affected Products

D-Link Dir-823G

References · 8

• 🔥❌ https://github.com/bugfinder0/public_bug/tree/main/dlink/dir823g/SetWanSettings_Password · Exploit, Deleted
• https://dlink.com/en/security-bulletin · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-06448 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-44837 · Security Note
• https://osv.dev/vulnerability/CVE-2023-44837 · Vendor Advisory
• https://twitter.com/VulmonFeeds/status/1710005640423199028 · Twitter Post
• https://t.me/cvenotify/59068 · Telegram Post
• https://twitter.com/CVEnew/status/1709966873540833540 · Twitter Post