High severity · published Apr 14, 2021
CVE-2021-27249
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
5.1%
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. The issue results from the lack of proper validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-11369.
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)5.1% · higher than 92% 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-2021-27249
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-27249
Patch
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10201
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-204/
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