PT-2022-5330 · D Link · D-Link Dir-846

Published 2022-10-31 · Updated 2022-11-01 · CVE-2020-21016

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-846 version 100A35

Description The issue is related to insufficient argument validation in a command, allowing remote attackers to execute arbitrary code as root. This can be achieved via a specially crafted request to the "HNAP1/control/SetGuestWLanSettings.php" endpoint.

Recommendations For D-Link DIR-846 version 100A35, consider disabling access to the HNAP1/control/SetGuestWLanSettings.php endpoint until a patch is available. Restricting the use of the HNAP1 protocol may also help minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Code Injection

OS Command Injection

Weakness Enumeration

CWE-94

CWE-78

Related Identifiers

BDU:2022-06644

CVE-2020-21016

Affected Products

D-Link Dir-846

References · 5

• 🔥 https://github.com/dahua966/Routers-vuls/blob/master/DIR-846/GuestWLanSetting_RCE.md · Exploit
• https://osv.dev/vulnerability/CVE-2020-21016 · Vendor Advisory
• https://dlink.com/en/security-bulletin · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-21016 · Security Note
• https://bdu.fstec.ru/vul/2022-06644 · Security Note