Cisco NX-OS Software Sensitive File Read Information Disclosure Vulnerability (cisco-sa-20190515-nxos-fxos-info)

medium Nessus Plugin ID 136481


The remote device is missing a vendor-supplied security patch


According to its self-reported version, Cisco Firepower Extensible Operating System (FXOS) is affected by following vulnerability

- A vulnerability in the implementation of a CLI diagnostic command in Cisco FXOS Software and Cisco NX- OS Software could allow an authenticated, local attacker to view sensitive system files that should be restricted. The attacker could use this information to conduct additional reconnaissance attacks.The vulnerability is due to incomplete role-based access control (RBAC) verification. An attacker could exploit this vulnerability by authenticating to the device and issuing a specific CLI diagnostic command with crafted user-input parameters. An exploit could allow the attacker to perform an arbitrary read of a file on the device, and the file may contain sensitive information.
The attacker needs valid device credentials to exploit this vulnerability. (CVE-2019-1734)

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


Upgrade to the relevant fixed version referenced in the appropriate Cisco bug ID:
- CSCvj59436
- CSCvj50808
- CSCvj50810
- CSCvj50814
- CSCvj50816
- CSCvj50836

See Also

Plugin Details

Severity: Medium

ID: 136481

File Name: cisco-sa-20190515-fxos-info.nasl

Version: 1.4

Type: local

Family: CISCO

Published: 5/12/2020

Updated: 5/13/2020

Risk Information


Risk Factor: Low

Score: 3.6


Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

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

CVSS Score Source: CVE-2019-1734


Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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

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

Vulnerability Information

CPE: cpe:/o:cisco:firepower_extensible_operating_system_(fxos)

Required KB Items: installed_sw/FXOS

Exploit Ease: No known exploits are available

Patch Publication Date: 5/15/2019

Vulnerability Publication Date: 5/15/2019

Reference Information

CVE: CVE-2019-1734

BID: 108381