Cisco Security Advisory
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AV:N/AC:M/Au:N/C:N/I:N/A:P/E:F/RL:OF/RC:C
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A vulnerability in the Nexus Data Broker (NDB) in Cisco Nexus 3000 Series Switches could allow an unauthenticated, remote attacker to cause a partial denial of service (DoS) condition.
The vulnerability is in handling incoming connections to the Java application. An attacker could exploit this vulnerability by sending crafted Java connections to the NDB. An exploit could allow the attacker to cause the Java process to restart, causing a partial DoS condition on the device.
Cisco has confirmed the vulnerability and released software updates.
To exploit this vulnerability, the attacker would need to send crafted Java connections to a targeted device, making exploitation more difficult in environments that restrict network access from untrusted sources.
Cisco indicates through the CVSS score that functional exploit code exists; however, the code is not known to be publicly available.
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Cisco has released bug ID CSCut87006 for registered users, which contains additional details and an up-to-date list of affected product versions.
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Administrators are advised to apply the appropriate updates.
Administrators are advised to allow only trusted users to have network access.
Administrators are advised to monitor affected systems.
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Cisco customers with active contracts can obtain updates through the Software Center at the following link: Cisco. Cisco customers without contracts can obtain upgrades by contacting the Cisco Technical Assistance Center at 1-800-553-2447 or 1-408-526-7209 or via email at tac@cisco.com.
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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.
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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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Show LessVersion Description Section Status Date 1.0 Initial Release NA Final 2015-Aug-12
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