CVE-2019-1809

  • Published Date: Wed 15 May 2019
  • Last Modified Date: Mon 20 May 2019

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 crafting an unsigned software patch to bypass signature checks and loading it on an affected device. A successful exploit could allow the attacker to boot a malicious software patch image.

Impact

Severity: MEDIUM
Exploitability Score: 3.9
Impact Score: 6.4
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
Availability (A): PARTIAL

References (Advisories, Solutions, and Tools):



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