critical
9
CWE
77
Advisory Published
Updated

CVE-2021-1549: Cisco Small Business 100, 300, and 500 Series Wireless Access Points Command Injection Vulnerabilities

First published: Sat May 22 2021(Updated: )

Multiple vulnerabilities in the web-based management interface of certain Cisco Small Business 100, 300, and 500 Series Wireless Access Points could allow an authenticated, remote attacker to perform command injection attacks against an affected device. These vulnerabilities are due to improper validation of user-supplied input. An attacker could exploit these vulnerabilities by sending crafted HTTP requests to the web-based management interface of an affected system. A successful exploit could allow the attacker to execute arbitrary commands with root privileges on the device. To exploit these vulnerabilities, the attacker must have valid administrative credentials for the device.

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco Wap125 Firmware<=1.0.3.1
Cisco Wap125
Cisco Wap131 Firmware<=1.0.2.17
Cisco Wap131
Cisco Wap150 Firmware<=1.1.2.4
Cisco WAP150
Cisco Wap351 Firmware<=1.0.2.17
Cisco Wap351
Cisco Wap361 Firmware<=1.1.2.4
Cisco Wap361
Cisco Wap581 Firmware<=1.0.3.1
Cisco Wap581

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Reference Links

Frequently Asked Questions

  • What is CVE-2021-1549?

    CVE-2021-1549 is a vulnerability in the web-based management interface of certain Cisco Small Business Wireless Access Points that allows an authenticated, remote attacker to perform command injection attacks.

  • Which Cisco Small Business Wireless Access Points are affected by CVE-2021-1549?

    The Cisco Small Business 100, 300, and 500 Series Wireless Access Points are affected, including models WAP125, WAP131, WAP150, WAP351, WAP361, and WAP581.

  • What is the severity of CVE-2021-1549?

    CVE-2021-1549 has a severity rating of 7.2 (critical).

  • How can an attacker exploit CVE-2021-1549?

    An authenticated, remote attacker can exploit CVE-2021-1549 by performing command injection attacks on vulnerable Cisco Small Business Wireless Access Points.

  • Is there a fix for CVE-2021-1549?

    Yes, Cisco has released firmware updates to address CVE-2021-1549. It is recommended to update to the latest firmware version available for the affected Cisco Small Business Wireless Access Point models.

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