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

Medium Nessus Plugin ID 91963

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: 91963

File Name: cisco_asa_info_disclosure_CSCuo65775.nasl

Version: 1.5

Type: remote

Family: CISCO

Published: 2016/07/06

Updated: 2019/11/19

Dependencies: 42796

Risk Information

Risk Factor: Medium

CVSS Score Source: CVE-2016-1295

CVSS v2.0

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 v3.0

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 Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2016/01/15

Vulnerability Publication Date: 2016/01/15

Reference Information

CVE: CVE-2016-1295

CISCO-BUG-ID: CSCuo65775

CISCO-SA: cisco-sa-20160115-asa