Vulnerability CVE-2021-27248


Published: 2021-04-14

Description:
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-2020 v1.01rc001 Wi-Fi access points. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of CGI scripts. When parsing the getpage parameter, the process does not properly validate 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-10932.

Type:

CWE-121

(Stack-based Buffer Overflow)

CVSS2 => (AV:A/AC:L/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
8.3/10
10/10
6.5/10
Exploit range
Attack complexity
Authentication
Adjacent network
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete

 References:
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10201
https://www.zerodayinitiative.com/advisories/ZDI-21-203/

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