CVE-2019-1808: Cisco MDS 9700 Series Multilayer Directors and Nexus 7000/7700 Series Switches Software Patch Signature Verification Vulnerability
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 patch on an affected device. The vulnerability is due to improper verification of digital signatures for patch images. An attacker could exploit this vulnerability by loading an unsigned software patch on an affected device. A successful exploit could allow the attacker to boot a malicious software patch image.
Affected Software
Event History
Frequently Asked Questions
What is CVE-2019-1808?
CVE-2019-1808 is a vulnerability in the Image Signature Verification feature of Cisco NX-OS Software that could allow an authenticated, local attacker to install a malicious software patch on an affected device.
How does CVE-2019-1808 affect Cisco NX-OS Software?
CVE-2019-1808 affects Cisco NX-OS Software versions 7.3 to 8.1(1a) and versions 8.2 to 8.3(1).
What is the severity of CVE-2019-1808?
CVE-2019-1808 has a severity rating of 4.4 out of 10, which is considered medium severity.
Are Cisco MDS devices affected by CVE-2019-1808?
No, Cisco MDS devices are not affected by CVE-2019-1808.
How can I fix CVE-2019-1808?
To fix CVE-2019-1808, upgrade to a fixed software release based on the Cisco NX-OS Software version running on the device.