Summary

• 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 obtain sensitive information from or inject arbitrary commands on an affected device.

  For more information about these vulnerabilities, see the Details section of this advisory.

  Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.

  This advisory is available at the following link:
  https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sb-wap-multi-ZAfKGXhF

Affected Products

• Vulnerable Products

  These vulnerabilities affect the following Cisco Small Business 100, 300, and 500 Series Wireless Access Points and firmware releases:

  Cisco Product	Vulnerable Release
  WAP125 Wireless-AC Dual Band Desktop Access Point with PoE	1.0.3.1 and earlier
  WAP131 Wireless-N Dual Radio Access Point with PoE 1	1.0.2.17 and earlier
  WAP150 Wireless-AC/N Dual Radio Access Point with PoE	1.1.2.4 and earlier
  WAP351 Wireless-N Dual Radio Access Point with 5-Port Switch1	1.0.2.17 and earlier
  WAP361 Wireless-AC/N Dual Radio Wall Plate Access Point with PoE	1.1.2.4 and earlier
  WAP581 Wireless-AC Dual Radio Wave 2 Access Point with 2.5GbE LAN	1.0.3.1 and earlier

  1. Cisco WAP131 Wireless-N Dual Radio Access Points with PoE and Cisco WAP351 Wireless-N Dual Radio Access Points with 5-Port Switch have entered the end-of-life process. For more details, see the Fixed Software section of this advisory.

  Products Confirmed Not Vulnerable

  Only products listed in the Vulnerable Products section of this advisory are known to be affected by these vulnerabilities.

Details

• The vulnerabilities are not dependent on one another. Exploitation of one of the vulnerabilities is not required to exploit the other vulnerability. In addition, a software release that is affected by one of the vulnerabilities may not be affected by the other vulnerability.

  Details about the vulnerabilities are as follows:

  CVE-2021-1400: Cisco Small Business WAP Series Wireless Access Points Information Disclosure Vulnerability

  A vulnerability 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 without administrative privileges to obtain sensitive information from an affected device.

  This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web-based management interface of an affected device. A successful exploit could allow the attacker to impersonate another user, including an administrative user, on the device.

  Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

  Bug ID(s): CSCvw52146, CSCvw59995, and CSCvw59999
  CVE ID:CVE-2021-1400
  Security Impact Rating (SIR): High
  CVSS Base Score: 8.8
  CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

  CVE-2021-1401: Cisco Small Business WAP Series Wireless Access Points Command Injection Vulnerability

  A vulnerability 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. The attacker must have valid administrative credentials for the device.

  The vulnerability is due to improper input validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request 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.

  Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

  Bug ID(s): CSCvw52139, CSCvw59997, and CSCvw60000
  CVE ID:CVE-2021-1401
  Security Impact Rating (SIR): Medium
  CVSS Base Score: 5.5
  CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:L/A:N

Workarounds

• There are no workarounds that address these vulnerabilities.

Fixed Software

• Cisco has released free software updates that address the vulnerabilities described in this advisory. Customers may only install and expect support for software versions and feature sets for which they have purchased a license. By installing, downloading, accessing, or otherwise using such software upgrades, customers agree to follow the terms of the Cisco software license:
  https://www.cisco.com/c/en/us/products/end-user-license-agreement.html

  Additionally, customers may only download software for which they have a valid license, procured from Cisco directly, or through a Cisco authorized reseller or partner. In most cases this will be a maintenance upgrade to software that was previously purchased. Free security software updates do not entitle customers to a new software license, additional software feature sets, or major revision upgrades.

  When considering software upgrades, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page, to determine exposure and a complete upgrade solution.

  In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.

  Customers Without Service Contracts

  Customers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco TAC: https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html

  Customers should have the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade.

  Fixed Releases

  Customers are advised to upgrade to an appropriate fixed firmware release as indicated in the following table:

  Cisco Product	Cisco Bug ID	Fixed Releases
  WAP125 Wireless-AC Dual Band Desktop Access Point with PoE	CSCvw59999 CSCvw60000	1.0.4.3 and later
  WAP150 Wireless-AC/N Dual Radio Access Point with PoE	CSCvw59995 CSCvw59997	1.1.3.2 and later
  WAP361 Wireless-AC/N Dual Radio Wall Plate Access Point with PoE	CSCvw59995 CSCvw59997	1.1.3.2 and later
  WAP581 Wireless-AC Dual Radio Wave 2 Access Point with 2.5GbE LAN	CSCvw59999 CSCvw60000	1.0.4.4 and later

  WAP131 and WAP351 Access Points: CSCvw52146 CSCvw52139

  Cisco has not released and will not release firmware updates for Cisco WAP131 Wireless-N Dual Radio Access Point with PoE and Cisco WAP351 Wireless-N Dual Radio Access Point with 5-Port Switch to address the vulnerabilities described in this advisory. These products have entered the end-of-life process. Customers are advised to refer to the end-of-life notices for these products:

  End-of-Sale and End-of-Life Announcement for the Cisco WAP131 Wireless-N Dual Radio Access Point with PoE

  End-of-Sale and End-of-Life Announcement for the Cisco WAP351 Wireless-N Dual Radio Access Point with 5-Port Switch

  Customers are encouraged to migrate to the Cisco WAP125 Wireless-AC Dual Band Desktop Access Point with PoE.

  When considering a device migration, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page, to determine exposure and a complete upgrade solution.

  In all cases, customers should ensure that new access point will be sufficient for their network needs, contains sufficient memory, and current hardware and software configurations will continue to be supported properly by the new product. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.

Exploitation and Public Announcements

• The Cisco Product Security Incident Response Team (PSIRT) is not aware of any malicious use of the vulnerabilities that are described in this advisory.

Source

• Cisco would like to thank Shuto Imai of LAC Co., Ltd., for reporting these vulnerabilities.

URL

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sb-wap-multi-ZAfKGXhF

Revision History

• Version	Description	Section	Status	Date
  1.0	Initial public release.	-	Final	2021-MAY-05

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