Cisco ASA WebVPN CIFS Share Enumeration DoS (CSCuj83344)

Medium Nessus Plugin ID 77411

Synopsis

The remote device is missing a vendor-supplied security patch.

Description

According to its banner, the version of the remote Cisco ASA device is affected by a denial of service vulnerability in the WebVPN CIFS (Common Internet File System) access function due to missing bounds checks on received responses when enumerating large amounts of shares on a CIFS server. A remote, authenticated attacker can exploit this issue by attempting to list the shares of a CIFS server with a large amount of shares.

Solution

Apply the relevant patch referenced in Cisco bug ID CSCuj83344.

See Also

http://www.nessus.org/u?66327426

https://tools.cisco.com/security/center/viewAlert.x?alertId=34921

Plugin Details

Severity: Medium

ID: 77411

File Name: cisco-sn-CSCuj83344-asa.nasl

Version: 1.7

Type: local

Family: CISCO

Published: 2014/08/28

Updated: 2018/11/15

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:C

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: cpe:/a:cisco:adaptive_security_appliance_software

Required KB Items: Host/Cisco/ASA, Host/Cisco/ASA/model

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2014/07/22

Vulnerability Publication Date: 2014/07/11

Reference Information

CVE: CVE-2013-6691

BID: 68517

CISCO-BUG-ID: CSCuj83344