CVE-2021-27249

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.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.44% Top 25%
Vendor Advisory dlink.com
Affected: D-Link DAP-2020
Published at:
Updated at:

References

Link Tags
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10201 patch vendor advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-204/ vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-27249?
CVE-2021-27249 has been scored as a high severity vulnerability.
How to fix CVE-2021-27249?
To fix CVE-2021-27249, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-27249 being actively exploited in the wild?
It is possible that CVE-2021-27249 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-27249?
CVE-2021-27249 affects D-Link DAP-2020.
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