CVE-2019-1779: Cisco FXOS and NX-OS Software Command Injection Vulnerability

Published May 15, 2019
·
Updated

A vulnerability in the CLI of Cisco FXOS Software and Cisco NX-OS Software could allow an authenticated, local attacker to execute arbitrary commands on the underlying operating system of an affected device with elevated privileges. The vulnerability is due to insufficient validation of arguments passed to certain CLI commands. An attacker could exploit this vulnerability by including malicious input as the argument of an affected command. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system with elevated privileges. An attacker would need valid device credentials to exploit this vulnerability.

Affected Software

99 affected components
Cisco Firepower Extensible Operating System<2.4.1.101
Cisco Firepower 4110
Cisco Firepower 4112
Cisco Firepower 4115
Cisco Firepower 4120
Cisco Firepower 4125
Cisco Firepower 4140
Cisco Firepower 4145
Cisco Firepower 4150
Cisco Firepower 9300
Cisco NX-OS>=5.2<6.2\(25\)
Cisco NX-OS>=7.3<8.1\(1b\)
Cisco NX-OS>=8.2<8.3\(1\)
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\(4\)
Cisco Nexus 3016
Cisco Nexus 3048
Cisco Nexus 3064
Cisco Nexus 3064-t
Cisco Nexus 31108pc-v
Cisco Nexus 31108tc-v
Cisco Nexus 31128pq
Cisco Nexus 3132c-z
Cisco Nexus 3132q
Cisco Nexus 3132q-v
Cisco Nexus 3132q-xl
Cisco Nexus 3164q
Cisco Nexus 3172
Cisco Nexus 3172pq-xl
Cisco Nexus 3172tq
Cisco Nexus 3172tq-32t
Cisco Nexus 3172tq-xl
Cisco Nexus 3232c
Cisco Nexus 3264c-e
Cisco Nexus 3264q
Cisco Nexus 3408-s
Cisco Nexus 34180yc
Cisco Nexus 3432d-s
Cisco Nexus 3464c
Cisco Nexus 3524
Cisco Nexus 3524-x
Cisco Nexus 3524-xl
Cisco Nexus 3548
Cisco Nexus 3548-x
Cisco Nexus 3548-xl
Cisco Nexus 9000v
Cisco Nexus 92160yc-x
Cisco Nexus 92300yc
Cisco Nexus 92304qc
Cisco Nexus 92348gc-x
Cisco Nexus 9236c
Cisco Nexus 9272q
Cisco Nexus 93108tc-ex
Cisco Nexus 93108tc-fx
Cisco Nexus 93120tx
Cisco Nexus 93128tx
Cisco Nexus 93180lc-ex
Cisco Nexus 93180yc-ex
Cisco Nexus 93180yc-fx
Cisco Nexus 93216tc-fx2
Cisco Nexus 93240yc-fx2
Cisco Nexus 9332c
Cisco Nexus 9332pq
Cisco Nexus 93360yc-fx2
Cisco Nexus 9336c-fx2
Cisco Nexus 9336pq Aci Spine
Cisco Nexus 9348gc-fxp
Cisco Nexus 9364c
Cisco Nexus 9372px
Cisco Nexus 9372px-e
Cisco Nexus 9372tx
Cisco Nexus 9372tx-e
Cisco Nexus 9396px
Cisco Nexus 9396tx
Cisco NX-OS>=7.0\(3\)<7.0\(3\)f3\(5\)
Cisco Nexus 36180yc-r
Cisco Nexus 3636c-r
Cisco Nexus 9504
Cisco Nexus 9508
Cisco Nexus 9516
Cisco NX-OS<7.3\(4\)n1\(1\)
Cisco Nexus 5548p
Cisco Nexus 5548up
Cisco Nexus 5596t
Cisco Nexus 5596up
Cisco Nexus 56128p
Cisco Nexus 5624q
Cisco Nexus 5648q
Cisco Nexus 5672up
Cisco Nexus 5696q
Cisco NX-OS<6.2\(22\)
Cisco NX-OS>=7.2<7.3\(3\)d1\(1\)
Cisco NX-OS>=8.0<8.3\(1\)
Cisco Nexus 7000
Cisco Nexus 7700

Event History

May 15, 2019
CVE Published
via MITRE·07:40 PM
Data Sourced
via MITRE·07:40 PM
DescriptionSeverityWeakness
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Frequently Asked Questions

1

What is the severity of CVE-2019-1779?

CVE-2019-1779 has been rated as a high-severity vulnerability due to its potential for arbitrary command execution with elevated privileges.

2

How do I fix CVE-2019-1779?

To mitigate CVE-2019-1779, it is recommended to upgrade the affected Cisco FXOS and NX-OS software to the latest patched versions.

3

Who is affected by CVE-2019-1779?

CVE-2019-1779 affects devices running certain versions of Cisco FXOS and NX-OS software that do not adequately validate input in the command-line interface.

4

What types of devices are impacted by CVE-2019-1779?

Devices such as Cisco Firepower series and several Cisco Nexus switches with affected NX-OS versions are impacted by CVE-2019-1779.

5

Is CVE-2019-1779 being actively exploited?

As of now, there are no confirmed active exploits reported for CVE-2019-1779, but the vulnerability presents significant risk if not addressed.

Contact

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