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Cisco Spark Representational State Transfer Interface Denial of Service Vulnerability

Related Vulnerabilities: CVE-2016-1324  

A vulnerability in the Representational State Transfer (REST) interface of Cisco Spark could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to missing authorization checks on certain administrative pages. An attacker could exploit this vulnerability by using certain pages to deny service of specific resources. Cisco has released software updates that address this vulnerability. Workarounds that mitigate this vulnerability are not available. This advisory is available at the following link: http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160210-sp3

Source

Summary

  • A vulnerability in the Representational State Transfer (REST) interface of Cisco Spark could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.

    The vulnerability is due to missing authorization checks on certain administrative pages. An attacker could exploit this vulnerability by using certain pages to deny service of specific resources.

    Cisco has released software updates that address this vulnerability. Workarounds that mitigate this vulnerability are not available.

    This advisory is available at the following link: http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160210-sp3

Affected Products

  • Vulnerable Products

    Cisco Spark release 2015-06 is vulnerable.

    Products Confirmed Not Vulnerable

    No other Cisco products are currently known to be affected by this vulnerability.

Workarounds

  • Workarounds are not available.

Fixed Software

  • When considering software upgrades, customers are advised to consult the Cisco Security Advisories and Responses archive at http://www.cisco.com/go/psirt and review subsequent advisories 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.

Exploitation and Public Announcements

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

Cisco Security Vulnerability Policy

  • To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.

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Revision History

  • Version Description Section Status Date
    1.0 Initial public release. - Final 2016-February-10

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