8.8
CWE
78
Advisory Published
Updated
Advisory Published

CVE-2021-27249: D-Link DAP-2020 WEB_CmdFileList Command Injection Remote Code Execution Vulnerability

First published: Wed Apr 14 2021(Updated: )

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.

Credit: zdi-disclosures@trendmicro.com zdi-disclosures@trendmicro.com

Affected SoftwareAffected VersionHow to fix
D-Link DAP-2020=1.01-rc001
D-Link DAP-2020
D-Link DAP-2020=1.01-rc001

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Frequently Asked Questions

  • What is the severity of CVE-2021-27249?

    The severity of CVE-2021-27249 is high with a CVSS score of 8.8.

  • How does CVE-2021-27249 allow attackers to execute arbitrary code?

    CVE-2021-27249 allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-2020 v1.01rc001.

  • Is authentication required to exploit CVE-2021-27249?

    No, authentication is not required to exploit CVE-2021-27249.

  • Which software versions of D-Link DAP-2020 are affected by CVE-2021-27249?

    D-Link DAP-2020 v1.01rc001 is affected by CVE-2021-27249.

  • How can I fix the vulnerability in D-Link DAP-2020?

    To fix the vulnerability in D-Link DAP-2020, update the firmware to version 1.01rc001 or later as per the vendor's recommendation.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2024 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203