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Vulnerability of Cisco ASA: denial of service via CIFS Share Enumeration

Synthesis of the vulnerability 

An attacker can send a special CIFS reply to Cisco ASA, in order to trigger a denial of service.
Vulnerable systems: ASA.
Severity of this threat: 2/4.
Creation date: 15/07/2014.
Références of this weakness: CSCuj83344, CVE-2013-6691, VIGILANCE-VUL-15044.

Description of the vulnerability 

The Cisco ASA product has a WebVPN Common Internet File System feature.

However, if the CIFS server returns a large list of shares, Cisco ASA is reloaded.

An attacker can therefore send a special CIFS reply to Cisco ASA, in order to trigger a denial of service.
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This cybersecurity weakness impacts software or systems such as ASA.

Our Vigil@nce team determined that the severity of this security vulnerability is medium.

The trust level is of type confirmed by the editor, with an origin of intranet server.

An attacker with a expert ability can exploit this vulnerability bulletin.

Solutions for this threat 

Cisco ASA: solution CSCuj83344.
The solution CSCuj83344 is available:
  https://tools.cisco.com/bugsearch/bug/CSCuj83344
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