medium
5.5
CWE
200
Advisory Published
Updated

CVE-2019-1734: Cisco FXOS and NX-OS Software Sensitive File Read Information Disclosure Vulnerability

First published: Tue Nov 05 2019(Updated: )

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.

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco Firepower Extensible Operating System<2.2.2.91
Cisco Firepower Extensible Operating System>=2.3<2.3.1.111
Cisco Firepower Extensible Operating System>=2.4<2.4.1.101
Cisco Firepower 4110 Next-Generation Firewall
Cisco Firepower 4112 Firmware
Cisco Firepower 4115
Cisco Firepower 4120 Next-Generation Firewall
Cisco Firepower 4125 firmware
Cisco Firepower 4140 Next-Generation Firewall
Cisco Firepower 4145 firmware
Cisco Firepower 4150 Next-Generation Firewall
Cisco Firepower 9300 firmware
Cisco NX-OS<6.2\(7\)
Cisco MDS 9100
Cisco MDS 9200
Cisco MDS 9500
Cisco MDS 9700
Cisco NX-OS<7.0\(3\)i4\(9\)
Cisco NX-OS>=7.0\(3\)i7<7.0\(3\)i7\(6\)
Cisco Nexus 3016Q Firmware
Cisco Nexus 3048 Firmware
Cisco Nexus 3064 Firmware
Cisco Nexus 3064
Cisco Nexus 31108PC-V Firmware
Cisco Nexus 31108TC-V Firmware
Cisco Nexus 31128PQ
Cisco Nexus 3132C-Z Firmware
Cisco Nexus 3132Q-XL
Cisco Nexus 3132Q-V Firmware
Cisco Nexus 3132Q-XL Firmware
Cisco Nexus 3164Q Firmware
Cisco Nexus 3172 Firmware
Cisco Nexus 3172PQ-XL Firmware
Cisco Nexus 3172TQ Firmware
Cisco Nexus 3172TQ-XL
Cisco Nexus 3172TQ-XL Firmware
Cisco Nexus 3232C
Cisco Nexus 3264C-E Firmware
Cisco Nexus 3264Q Firmware
Cisco Nexus 3408-S Firmware
Cisco Nexus 34180YC Firmware
Cisco Nexus 3432D-S Firmware
Cisco Nexus 3464C Firmware
Cisco NX-OS Nexus 9000 Series
Cisco Nexus 92160YC Switch
Cisco Nexus 92300YC Firmware
Cisco Nexus 92304QC Switch
Cisco Nexus 92348GC-X Switch
Cisco Nexus 9236C Switch
Cisco Nexus 9272Q Switch
Cisco Nexus
Cisco Nexus 93108TC-FX Switch
Cisco Nexus 93120TX Firmware
Cisco Nexus 93128 Firmware
Cisco Nexus 93180LC-EX Switch
Cisco Nexus 93180YC-EX-24
Cisco Nexus 93180YC-FX Firmware
Cisco Nexus 93216TC-FX2 Firmware
Cisco Nexus 93240YC-FX2 Firmware
Cisco Nexus 9332C Firmware
Cisco Nexus 9332PQ Firmware
Cisco Nexus 93360YC-FX2
Cisco Nexus 9336C-FX2 Firmware
Cisco Nexus N9336PQ-X
Cisco Nexus 9348GC-FXP Firmware
Cisco Nexus 9364c-h1
Cisco Nexus 9372PX-E
Cisco Nexus 9372PX-E Firmware
Cisco Nexus 9372TX
Cisco Nexus 9372TX-E Switch
Cisco Nexus 9396PX Firmware
Cisco Nexus 9396TX Firmware
Cisco NX-OS<6.0\(2\)a4\(1\)
Cisco NX-OS>=7.0\(3\)i4<7.0\(3\)i4\(9\)
Cisco Nexus 3524-xl
Cisco Nexus 3524-xl
Cisco Nexus 3524-XL Firmware
Cisco Nexus 3548-X/XL Firmware
Cisco Nexus 3548-X/XL
Cisco Nexus 3548-X/XL
Cisco NX-OS>=7.0\(3\)<7.0\(3\)f3\(5\)
Cisco Nexus 36180YC-R Firmware
Cisco Nexus 3636C-R Firmware
Cisco Nexus 9504 firmware
Cisco Nexus 9508
Cisco Nexus 9516 firmware
Cisco NX-OS<7.1\(4\)n1\(1\)
Cisco NX-OS>=7.2<7.3\(0\)n1\(1\)
Cisco Nexus 5548P Firmware
Cisco Nexus 5548UP Firmware
Cisco Nexus 5596T Firmware
Cisco Nexus 5596UP Firmware
Cisco 56128p
Cisco Nexus 5624Q Firmware
Cisco Nexus 5648Q Firmware
Cisco Nexus 5672UP-16G
Cisco Nexus 5696Q Firmware
Cisco Nexus 6001 Firmware
Cisco Nexus 6004 Firmware
Cisco NX-OS<6.2\(6\)
Cisco Nexus 7000
Cisco Nexus 7700 series
Cisco NX-OS<4.0\(1a\)
Cisco UCS 6200 firmware
Cisco UCS 6300 firmware

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2019-1734?

    CVE-2019-1734 has been classified as a medium severity vulnerability.

  • How do I fix CVE-2019-1734?

    To remediate CVE-2019-1734, update Cisco FXOS Software and Cisco NX-OS Software to the recommended fixed versions.

  • Which products are affected by CVE-2019-1734?

    CVE-2019-1734 affects various versions of Cisco FXOS Software and Cisco NX-OS Software.

  • What could an attacker do with CVE-2019-1734?

    An authenticated local attacker could exploit CVE-2019-1734 to view sensitive system files.

  • Is CVE-2019-1734 being actively exploited?

    As of now, there have been no reports of active exploitation of CVE-2019-1734 in the wild.

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