PT-2019-1663 · D Link · D-Link Dir-823G

David Chen · Published 2019-02-16 · Updated 2020-08-24 · CVE-2019-8392

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions D-Link DIR-823G version 1.02B03

Description The issue is related to incorrect access control in the SetWLanRadioSettings function of the D-Link DIR-823G router's firmware, allowing remote attackers to enable Guest Wi-Fi. This can be achieved by sending a specially crafted POST request to the /bin/goahead web service, exploiting the vulnerability in the SetWLanRadioSettings HNAP API.

Recommendations For D-Link DIR-823G version 1.02B03, consider disabling the SetWLanRadioSettings() function or restricting access to the /bin/goahead web service until a patch is available. Additionally, limit the use of Guest Wi-Fi to minimize the risk of exploitation.

Exploit

Fix

Improper Access Control

Weakness Enumeration

CWE-284

Related Identifiers

BDU:2019-01211

CVE-2019-8392

Affected Products

D-Link Dir-823G

References · 4

• 🔥 https://github.com/leonW7/D-Link/blob/master/Vul_6.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2019-8392 · Security Note
• https://osv.dev/vulnerability/CVE-2019-8392 · Vendor Advisory
• https://bdu.fstec.ru/vul/2019-01211 · Security Note