medium
6.7
CWE
347
Advisory Published
CVE Published
CVE Published
Updated

CVE-2019-1615: Cisco NX-OS Software Image Signature Verification Vulnerability

First published: Wed Mar 06 2019(Updated: )

A vulnerability in the Image Signature Verification feature of Cisco NX-OS Software could allow an authenticated, local attacker with administrator-level credentials to install a malicious software image on an affected device. The vulnerability is due to improper verification of digital signatures for software images. An attacker could exploit this vulnerability by loading an unsigned software image on an affected device. A successful exploit could allow the attacker to boot a malicious software image. Note: The fix for this vulnerability requires a BIOS upgrade as part of the software upgrade. For additional information, see the Details section of this advisory. Nexus 3000 Series Switches are affected running software versions prior to 7.0(3)I7(5). Nexus 9000 Series Fabric Switches in ACI Mode are affected running software versions prior to 13.2(1l). Nexus 9000 Series Switches in Standalone NX-OS Mode are affected running software versions prior to 7.0(3)I7(5). Nexus 9500 R-Series Line Cards and Fabric Modules are affected running software versions prior to 7.0(3)F3(5).

Credit: ykramarz@cisco.com ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
All of
Any of
Cisco NX-OS=7.0\(3\)i7\(3\)
Cisco NX-OS=9.2\(1\)
Cisco NX-OS=12.3\(0.97\)
Any of
Cisco Nexus 9432PQ
Cisco Nexus 9536PQ
Cisco Nexus 9636PQ
Cisco Nexus 9736PQ
Cisco Nexus 9000 Series N9K-X9432C-S
Cisco Nexus 9000 Series N9K-X9464PX
Cisco N9K-X9464TX2 Firmware
Cisco Nexus N9K-X9564PX
Cisco Nexus N9K-X9564TX
Cisco Nexus 9636C-R
Cisco Nexus n9k-x9636c-rx
Cisco Nexus 9000 N9K-X97160YC-EX
Cisco Nexus 9000 Series Switches n9k-x9732c-ex
Cisco Nexus 9000 Series N9K-X9732C-FX
Cisco Nexus 9000 Series Switch n9k-x9736c-ex
Cisco Nexus 9000 Series Switch
Cisco Nexus 9000 Series Switch n9k-x9788tc-fx
Cisco Nexus 92160YC Switch
Cisco Nexus 92300YC Firmware
Cisco Nexus 92304QC Firmware
Cisco Nexus 9236C
Cisco Nexus 9272Q Switch
Cisco Nexus
Cisco Nexus 93108TC-FX Switch
Cisco Nexus 93120TX Firmware
Cisco Nexus 9316D-GX Firmware
Cisco Nexus 9000 Series Switch
Cisco Nexus 93180YC-EX-24
Cisco Nexus 93180YC-FX Firmware
Cisco Nexus 93240YC-FX2 Firmware
Cisco Nexus 9332C Firmware
Cisco Nexus 9336C-FX2 Firmware
Cisco Nexus 9348GC-FXP Firmware
Cisco Nexus 93600CD-GX Firmware
Cisco Nexus 9364c-h1
Cisco Nexus 9504 Firmware
Cisco Nexus 9508
Cisco Nexus 9516 firmware
Cisco Nexus N9K-X9636Q-R
All of
Cisco NX-OS=7.0\(3\)i7\(5\)
Any of
Cisco Nexus 31128PQ
Cisco Nexus 3132C-Z
Cisco Nexus 3164Q
Cisco Nexus 3264Q
Cisco NX-OS=7.0\(3\)i7\(3\)
Cisco NX-OS=9.2\(1\)
Cisco NX-OS=12.3\(0.97\)
Cisco Nexus 9432PQ
Cisco Nexus 9536PQ
Cisco Nexus 9636PQ
Cisco Nexus 9736PQ
Cisco Nexus 9000 Series N9K-X9432C-S
Cisco Nexus 9000 Series N9K-X9464PX
Cisco N9K-X9464TX2 Firmware
Cisco Nexus N9K-X9564PX
Cisco Nexus N9K-X9564TX
Cisco Nexus 9636C-R
Cisco Nexus n9k-x9636c-rx
Cisco Nexus 9000 N9K-X97160YC-EX
Cisco Nexus 9000 Series Switches n9k-x9732c-ex
Cisco Nexus 9000 Series N9K-X9732C-FX
Cisco Nexus 9000 Series Switch n9k-x9736c-ex
Cisco Nexus 9000 Series Switch
Cisco Nexus 9000 Series Switch n9k-x9788tc-fx
Cisco Nexus 92160YC Switch
Cisco Nexus 92300YC Firmware
Cisco Nexus 92304QC Firmware
Cisco Nexus 9236C
Cisco Nexus 9272Q Switch
Cisco Nexus
Cisco Nexus 93108TC-FX Switch
Cisco Nexus 93120TX Firmware
Cisco Nexus 9316D-GX Firmware
Cisco Nexus 9000 Series Switch
Cisco Nexus 93180YC-EX-24
Cisco Nexus 93180YC-FX Firmware
Cisco Nexus 93240YC-FX2 Firmware
Cisco Nexus 9332C Firmware
Cisco Nexus 9336C-FX2 Firmware
Cisco Nexus 9348GC-FXP Firmware
Cisco Nexus 93600CD-GX Firmware
Cisco Nexus 9364c-h1
Cisco Nexus 9504 Firmware
Cisco Nexus 9508
Cisco Nexus 9516 firmware
Cisco Nexus N9K-X9636Q-R
Cisco NX-OS=7.0\(3\)i7\(5\)
Cisco Nexus 31128PQ
Cisco Nexus 3132C-Z
Cisco Nexus 3164Q
Cisco Nexus 3264Q

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Reference Links

Frequently Asked Questions

  • What is CVE-2019-1615?

    CVE-2019-1615 is a vulnerability in the Image Signature Verification feature of Cisco NX-OS Software.

  • What is the severity of CVE-2019-1615?

    CVE-2019-1615 has a severity rating of 6.7, which is considered medium.

  • How does CVE-2019-1615 affect Cisco NX-OS Software?

    CVE-2019-1615 allows an authenticated, local attacker with administrator-level credentials to install a malicious software image on an affected device.

  • What is the cause of CVE-2019-1615?

    CVE-2019-1615 is caused by improper verification of digital signatures in the Image Signature Verification feature of Cisco NX-OS Software.

  • How can I fix CVE-2019-1615?

    To fix CVE-2019-1615, Cisco has released a security advisory with instructions on how to address the vulnerability.

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