PT-2022-5270 · D Link · D-Link Dir-816 A2

Hunzi0 · Published 2022-10-26 · Updated 2022-10-28 · CVE-2022-43000

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 1.10 B05

Description The issue is related to a stack overflow in the /goform/form2WizardStep4 component of the D-Link DIR-816 A2 router's firmware. This can be exploited via the wizardstep4 pskpwd parameter, potentially allowing a remote attacker to execute arbitrary code.

Recommendations For D-Link DIR-816 A2 version 1.10 B05, consider restricting access to the /goform/form2WizardStep4 endpoint and avoid using the wizardstep4 pskpwd parameter until a patch is available. As a temporary workaround, disabling the vulnerable component may 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

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

BDU:2022-06554

CVE-2022-43000

Affected Products

D-Link Dir-816 A2

References · 5

• 🔥 https://github.com/hunzi0/VulInfo/tree/main/D-Link/DIR-816/form2WizardStep4 · Exploit
• https://dlink.com/en/security-bulletin · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-06554 · Security Note
• https://osv.dev/vulnerability/CVE-2022-43000 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-43000 · Security Note