High severity · published Apr 14, 2021
CVE-2021-27248
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-2020 v1.01rc001 Wi-Fi access points
8.8
CVSS
2.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.6% · higher than 85% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DF
Dap-2020 Firmware · Dlink
1.01 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-27248
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-27248
Patch
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10201
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-203/
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