Cisco ASA AnyConnect Client Authentication Attempt Handling Information Disclosure (cisco-sa-20160115-asa)

medium Nessus Plugin ID 91962
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

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

Description

According to its version and configuration, the Cisco Adaptive Security Appliance (ASA) software running on the remote device is affected by an information disclosure vulnerability due to a failure to protect sensitive data during a Cisco AnyConnect client authentication attempt. An unauthenticated, remote attacker can exploit this, by attempting to authenticate to the Cisco ASA with AnyConnect, to disclose sensitive data, including the ASA software version

Note that the SSL VPN feature must be enabled for the device to be affected by this vulnerability.

Solution

Upgrade to the relevant fixed version referenced in Cisco bug ID CSCuo65775.

See Also

http://www.nessus.org/u?408d7839

Plugin Details

Severity: Medium

ID: 91962

File Name: cisco-sa-20160115-asa.nasl

Version: 1.10

Type: local

Family: CISCO

Published: 7/6/2016

Updated: 11/19/2019

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2016-1295

VPR

Risk Factor: Low

Score: 1.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

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

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:2.3:a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*

Required KB Items: Host/Cisco/ASA

Exploit Ease: No known exploits are available

Patch Publication Date: 6/27/2016

Vulnerability Publication Date: 1/15/2016

Reference Information

CVE: CVE-2016-1295

CISCO-BUG-ID: CSCuo65775

CISCO-SA: cisco-sa-20160115-asa