Cisco Adaptive Security Appliance RCE (cisco-sa-20191112-asa-ftd-lua-rce)

High Nessus Plugin ID 131228

Synopsis

The remote device is affected by a remote code execution vulnerability

Description

A remote code execution vulnerability exists in the Lua interpreter of Cisco Adaptive Security Appliance (ASA) software due to insufficient restrictions on the allowed Lua function calls within the context of user-supplied Lua scripts. An authenticated, remote attacker can exploit this to bypass authentication and execute arbitrary commands with root privileges on the underlying Linux operating system of an affected device.

Please see the included Cisco BIDs and Cisco Security Advisory for more information.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Cisco will release a fixed version in the future. Please refer to Cisco bug ID CSCvr85295.

See Also

http://www.nessus.org/u?0e82478b

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvr85295

Plugin Details

Severity: High

ID: 131228

File Name: cisco-sa-20191112-asa-lua-rce.nasl

Version: 1.2

Type: local

Family: CISCO

Published: 2019/11/22

Updated: 2019/11/25

Dependencies: 11936, 12634

Risk Information

Risk Factor: High

CVSS Score Source: CVE-2019-15992

CVSS v2.0

Base Score: 9

Temporal Score: 6.7

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

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

CVSS v3.0

Base Score: 7.2

Temporal Score: 6.3

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

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

Vulnerability Information

CPE: cpe:/a:cisco:adaptive_security_appliance_software

Required KB Items: Host/Cisco/ASA

Exploit Ease: No known exploits are available

Patch Publication Date: 2019/11/12

Vulnerability Publication Date: 2019/11/12

Reference Information

CVE: CVE-2019-15992

CISCO-BUG-ID: CSCvr85295

CISCO-SA: cisco-sa-20191112-asa-ftd-lua-rce

IAVA: 019-A-0425