CVE Vulnerability

CVE-2021-34863

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-2020 1.01rc001 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of the var:page parameter provided to the webproc endpoint. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-13271.

5.8 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 6.5 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

8.8 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10201 Patch Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-979/ Third Party Advisory VDB Entry
Configurations

Configuration 1
Information

Published : 2021-10-25 05:15

Updated : 2021-10-27 04:27

NVD link : CVE-2021-34863

Mitre link : CVE-2021-34863

Products Affected
No products.
CWE
CWE-121