Cisco Security Advisory
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AV:N/AC:L/Au:N/C:N/I:N/A:P/E:F/RL:U/RC:C
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A vulnerability in the GUI function in the web framework code could allow an unauthenticated, remote attacker to cause the GlassFish process to become unresponsive, resulting in a partial denial of service (DoS) condition.
The vulnerability is due to improper handling, processing, and termination of HTTP and HTTPS connections. An attacker could exploit this vulnerability by sending multiple HTTP or HTTPS requests to any management-enabled interfaces of the affected system. A full TCP three-way handshake is required to exploit this vulnerability. An exploit could allow the attacker to prevent management access via the GUI. A hard reboot of the affected system is needed to restore full functionality.
Cisco has confirmed the vulnerability in a security notice; however, software updates are not available.
To exploit this vulnerability, an attacker must first determine the management-enabled interfaces on the targeted system and send multiple HTTP or HTTPS requests to the system. In a typical enterprise environment, these systems would reside on trusted, internal networks behind firewall restrictions. This access requirements decrease the likelihood of a successful exploit.
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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Customers are advised to consult Cisco bug IDs CSCuj59411, CSCuf89818, and CSCuh05635 for a complete list of affected product versions.
Vulnerable Products
At the time this alert was first published, the following versions of Cisco products were vulnerable. Later versions of Cisco products may also be affected.
- Cisco Web Security Appliance (WSA) versions 7.7 and prior
- Cisco Email Security Appliance (ESA) versions 8.0 and prior
- Cisco Content Security Management Appliance (SMA) versions 8.1 and prior
Products Confirmed Not Vulnerable
No other Cisco products are currently known to be affected by these vulnerabilities.
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Administrators are advised to contact the vendor regarding future updates and releases.
Administrators are advised to allow only trusted users to have network access.
Administrators may consider using IP-based access control lists (ACLs) to allow only trusted systems to access the affected systems.
Administrators are advised to monitor affected systems.
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Software updates are not available.
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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 2013-Oct-23
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