Code Execution Vulnerability in D-Link DAP-2020 Wi-Fi Access Points
CVE-2021-27248

8.8HIGH

Key Information:

Vendor
D-link
Status
Dap-2020
Vendor
CVE Published:
14 April 2021

Summary

This vulnerability affects D-Link DAP-2020 Wi-Fi access points, allowing network-adjacent attackers to execute arbitrary code without authentication. The flaw lies in the handling of CGI scripts where the 'getpage' parameter does not adequately validate the size of user input before transferring it to a fixed-length stack buffer. This oversight can be exploited to run malicious code with root privileges, potentially compromising the device and the network it serves.

Affected Version(s)

DAP-2020 v1.01rc001

References

https://www.zerodayinitiative.com/advisories/ZDI-21-203/
x_refsource_MISC
https://supportannouncement.us.dlink.com/announcement/pub...
x_refsource_MISC

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

chung96vn ft phieulang & Chi Tran
.