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 web interface of the Cisco Security Management Appliance (SMA) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on a targeted device.
The vulnerability is due to inadequate validation of user credentials for incoming HTTP requests, which can cause the device to manipulate an internal log file. An attacker could exploit this vulnerability by sending crafted HTTP requests to the device. A successful exploit could allow the attacker to cause a DoS condition due to an application fault. The application fault is caused when the log file wraps quickly.
Cisco has confirmed the vulnerability; however, software updates are not available.
To exploit the vulnerability, the attacker would need to send crafted HTTP requests to the targeted system through the SMA web interface. Because the attacker does not need to authenticate to send the crafted HTTP requests, the likelihood of a DoS condition is increased.
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 CSCuw09620 for registered users, which contains additional details and an up-to-date list of affected product versions.
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Administrators may consider using IP-based access control lists (ACLs) to allow only trusted systems to access the affected systems.
Administrators are advised to implement physical security for production servers.
Administrators are advised to contact the vendor regarding future updates and releases.
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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 2015-Sep-08
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