Cisco Security Advisory
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AV:L/AC:L/Au:S/C:N/I:C/A:N/E:POC/RL:U/RC:C
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A vulnerability in the inter-process communication (IPC) channel of the Cisco AnyConnect Secure Mobility Client Hostscan module could allow an authenticated, local attacker to write and overwrite arbitrary files with elevated privileges.
The vulnerability is due to insufficient path traversal protections in certain IPC commands. An attacker could exploit this vulnerability by sending crafted IPC messages. A successful exploit could allow an attacker to write or overwrite arbitrary files on the filesystem.
Cisco has confirmed the vulnerability in a security notice; however, software updates are not available.
To exploit this vulnerability, an attacker must authenticate and have local access to the targeted system. These requirements may reduce 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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Cisco has released bug ID CSCus79173 for registered users that contains additional details and an up-to-date list of affected product versions.
Vulnerable Products
At the time this alert was first published, Cisco AnyConnect Secure Mobility Client versions 4.0(.00051) and prior were vulnerable. Later versions of Cisco AnyConnect Secure Mobility Client may also be vulnerable.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 access local systems.
Administrators are advised to allow only privileged users to access administration or management 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 2015-Mar-14
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