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.
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 (hide)
| AND |
|
History
26 Apr 2023, 19:27
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Dlink dap-2020 Firmware
Dlink dap-2020 Dlink |
|
| CPE | cpe:2.3:o:d-link:dap-2020_firmware:*:*:*:*:*:*:*:* |
cpe:2.3:o:dlink:dap-2020_firmware:*:*:*:*:*:*:*:* cpe:2.3:h:dlink:dap-2020:*:*:*:*:*:*:*:* |
27 Oct 2021, 16:27
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:o:d-link:dap-2020_firmware:*:*:*:*:*:*:*:* cpe:2.3:h:d-link:dap-2020:*:*:*:*:*:*:*:* |
|
| CVSS |
v2 : v3 : |
v2 : 5.8
v3 : 8.8 |
| References | (N/A) https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10201 - Patch, Vendor Advisory | |
| References | (N/A) https://www.zerodayinitiative.com/advisories/ZDI-21-979/ - Third Party Advisory, VDB Entry |
25 Oct 2021, 18:15
| Type | Values Removed | Values Added |
|---|---|---|
| Summary | 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. |
25 Oct 2021, 17:19
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2021-10-25 17:15
Updated : 2023-12-10 14:09
NVD link : CVE-2021-34863
Mitre link : CVE-2021-34863
CVE.ORG link : CVE-2021-34863
JSON object : View
Products Affected
dlink
- dap-2020_firmware
- dap-2020
CWE
CWE-121
Stack-based Buffer Overflow