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

medium Nessus Plugin ID 91963

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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.

Plugin Details

Severity: Medium

ID: 91963

File Name: cisco_asa_info_disclosure_CSCuo65775.nasl

Version: 1.5

Type: remote

Family: CISCO

Published: 7/6/2016

Updated: 11/19/2019

Supported Sensors: Nessus

Risk Information

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

CVSS Score Source: CVE-2016-1295

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:/a:cisco:adaptive_security_appliance_software

Required KB Items: Services/cisco-ssl-vpn-svr

Exploit Ease: No known exploits are available

Patch Publication Date: 1/15/2016

Vulnerability Publication Date: 1/15/2016

Reference Information

CVE: CVE-2016-1295

CISCO-SA: cisco-sa-20160115-asa

CISCO-BUG-ID: CSCuo65775

Detections

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