CVE-2019-1600

Cisco FXOS and NX-OS Software Unauthorized Directory Access Vulnerability

MEDIUM

4.4

CVSS Score

Published: March 7, 2019 at 08:00 PM UTC

Updated: June 17, 2026 at 02:28 AM UTC

18 products affected across 1 vendorNx OSFirepower Extensible Operating SystemFirepower 9300

Using Firepower 4100 Series Next-Generation Firewalls by Cisco?

Get instant alerts when new vulnerabilities affect Firepower 4100 Series Next-Generation Firewalls - before attackers find them.

Real-time alertsTrack your software stackFree plan available

Start Free Sign In

Severity

MEDIUM4.4

Exploit prediction

EPSS 0.4%

SSVC

No known exploit

Description

A vulnerability in the file system permissions of Cisco FXOS Software and Cisco NX-OS Software could allow an authenticated, local attacker to access sensitive information that is stored in the file system of an affected system. The vulnerability is due to improper implementation of file system permissions. An attacker could exploit this vulnerability by accessing and modifying restricted files. A successful exploit could allow the attacker to access sensitive and critical files. Firepower 4100 Series Next-Generation Firewalls are affected in versions prior to 2.2.2.91 and 2.3.1.110. Firepower 9300 Series Next-Generation Firewalls are affected in versions prior to 2.2.2.91 and 2.3.1.110. MDS 9000 Series Multilayer Switches are affected in versions prior to 6.2(25), 8.1(1b), and 8.3(1). Nexus 3000 Series Switches are affected in versions prior to 7.0(3)I4(9) and 7.0(3)I7(4). Nexus 3500 Platform Switches are affected in versions prior to 6.0(2)A8(10) and 7.0(3)I7(4). Nexus 3600 Platform Switches are affected in versions prior to 7.0(3)F3(5). Nexus 2000, 5500, 5600, and 6000 Series Switches are affected in versions prior to 7.1(5)N1(1b) and 7.3(3)N1(1). Nexus 7000 and 7700 Series Switches are affected in versions prior to 6.2(22), 7.3(3)D1(1), and 8.2(3). Nexus 9000 Series Switches-Standalone are affected in versions prior to 7.0(3)I4(9) and 7.0(3)I7(4). Nexus 9500 R-Series Line Cards and Fabric Modules are affected in versions prior to 7.0(3)F3(5).

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Firepower Extensible Operating System · Cisco

95%

1.1 ≤ v < 2.2.2.912.3 ≤ v < 2.3.1.110

Affected range stops below 2.2.2.91, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.3.1.110, so it looks safe — our inference, not a vendor statement

cisco-firepower-4100 (environment) · cisco-firepower-9300 (environment)

Nx OS · Cisconpm

95%

v < 6.0(2)a8(10)v < 6.2(22)v < 7.0(3)i4(9)v < 7.1(5)n1(1b)5.2. ≤ v < 6.2(25)7.0(3) ≤ v < 7.0(3)i7(4)7.0(3)f1 ≤ v < 7.0(3)f3(5)7.0(3)f3 ≤ v < 7.0(3)f3(5)7.0(3)i5 ≤ v < 7.0(3)i7(4)7.2 ≤ v < 7.3(3)d1(1)7.2 ≤ v < 7.3(3)n1(1)7.3 ≤ v < 8.1(1b)8.0 ≤ v < 8.2(3)8.2 ≤ v < 8.3(1)

Affected range stops below 6.0(2)a8(10), so it looks safe — our inference, not a vendor statement

Affected range stops below 6.2(22), so it looks safe — our inference, not a vendor statement

Affected range stops below 6.2(25), so it looks safe — our inference, not a vendor statement

Affected range stops below 7.0(3)f3(5), so it looks safe — our inference, not a vendor statement

Affected range stops below 7.0(3)i4(9), so it looks safe — our inference, not a vendor statement

Affected range stops below 7.0(3)i7(4), so it looks safe — our inference, not a vendor statement

Affected range stops below 7.1(5)n1(1b), so it looks safe — our inference, not a vendor statement

Affected range stops below 7.3(3)d1(1), so it looks safe — our inference, not a vendor statement

Affected range stops below 7.3(3)n1(1), so it looks safe — our inference, not a vendor statement

Affected range stops below 8.1(1b), so it looks safe — our inference, not a vendor statement

Affected range stops below 8.2(3), so it looks safe — our inference, not a vendor statement

Affected range stops below 8.3(1), so it looks safe — our inference, not a vendor statement

cisco-mds-9000 (environment) · cisco-nexus-2000 (environment) · cisco-nexus-3000 (environment) · cisco-nexus-3500 (environment) · cisco-nexus-3600 (environment) · cisco-nexus-5500 (environment) · cisco-nexus-5600 (environment) · cisco-nexus-6000 (environment) · cisco-nexus-7000 (environment) · cisco-nexus-7700 (environment) · cisco-nexus-9000 (environment) · cisco-nexus-9500 (environment)

Firepower 4100 Series Next-Generation Firewall · Cisco

60%

v < 2.2.2.91v < 2.3.1.110

Affected range stops below 2.2.2.91, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.3.1.110, so it looks safe — our inference, not a vendor statement

Firepower 9300 Security Appliance · Cisco

60%

v < 2.2.2.91v < 2.3.1.110

Affected range stops below 2.2.2.91, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.3.1.110, so it looks safe — our inference, not a vendor statement

Mds 9000 · Cisco

60%

v < 6.2(25)v < 8.1(1b)v < 8.3(1)

Affected range stops below 6.2(25), so it looks safe — our inference, not a vendor statement

Affected range stops below 8.1(1b), so it looks safe — our inference, not a vendor statement

Affected range stops below 8.3(1), so it looks safe — our inference, not a vendor statement

Nexus 2000 · Cisco

60%

v < 7.1(5)N1(1b)v < 7.3(3)N1(1)

Affected range stops below 7.1(5)N1(1b), so it looks safe — our inference, not a vendor statement

Affected range stops below 7.3(3)N1(1), so it looks safe — our inference, not a vendor statement

Nexus 3000 · Cisco

60%

v < 7.0(3)I4(9)v < 7.0(3)I7(4)

Affected range stops below 7.0(3)I4(9), so it looks safe — our inference, not a vendor statement

Affected range stops below 7.0(3)I7(4), so it looks safe — our inference, not a vendor statement

Nexus 3500 · Cisco

60%

v < 6.0(2)A8(10)v < 7.0(3)I7(4)

Affected range stops below 6.0(2)A8(10), so it looks safe — our inference, not a vendor statement

Affected range stops below 7.0(3)I7(4), so it looks safe — our inference, not a vendor statement

Nexus 3600 · Cisco

60%

v < 7.0(3)F3(5)

Affected range stops below 7.0(3)F3(5), so it looks safe — our inference, not a vendor statement

Nexus 5500 · Cisco

60%

v < 7.1(5)N1(1b)v < 7.3(3)N1(1)

Affected range stops below 7.1(5)N1(1b), so it looks safe — our inference, not a vendor statement

Affected range stops below 7.3(3)N1(1), so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nxos-directory

References (3)

VDB Entryx_refsource_BIDThird Party Advisory

Source: [email protected]

http://www.securityfocus.com/bid/107399

VDB Entryx_refsource_BIDThird Party Advisory

Source: [email protected]

http://www.securityfocus.com/bid/107404

Vendor Advisoryx_refsource_CISCOPatch

Source: [email protected]

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nxos-directory

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.4MEDIUM[email protected]

Attack Vector: LOCAL
Complexity: LOW
Privileges: HIGH
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: NONE
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-264CWE-732

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create account Sign in

Free plan, no card