A vulnerability in the Image Signature Verification feature used in an NX-OS CLI command in Cisco Nexus 3000 Series and 9000 Series Switches could allow an authenticated, local attacker with administrator-level credentials to install a malicious software image on an affected device. The vulnerability exists because software digital signatures are not properly verified during CLI command execution. An attacker could exploit this vulnerability to install an unsigned software image on an affected device. Note: If the device has not been patched for the vulnerability previously disclosed in the Cisco Security Advisory cisco-sa-20190306-nxos-sig-verif, a successful exploit could allow the attacker to boot a malicious software image.
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 6.7, requiring local system access to exploit with relatively low complexity without requiring user interaction . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 5 products from cisco, from cisco, from cisco and 2 others, organizations running these solutions should prioritize assessment and patching.
First disclosed in 2019, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.
2019-05-15T23:29:01.153
2024-11-21T04:37:25.773
Modified
CVSSv3.1: 6.7 (MEDIUM)
AV:L/AC:L/Au:N/C:P/I:P/A:P
3.9
6.4
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | cisco | nx-os | < 7.0\(3\)i7\(5\) | Yes |
| Operating System | cisco | nx-os | < 9.2\(2\) | Yes |
| Hardware | cisco | n3k-c3164q | - | No |
| Operating System | cisco | nx-os | < 7.0\(3\)i7\(1\) | Yes |
| Operating System | cisco | nx-os | < 9.2\(1\) | Yes |
| Hardware | cisco | n3k-c3232c | - | No |
| Operating System | cisco | nx-os | < 7.0\(3\)i7\(5\) | Yes |
| Operating System | cisco | nx-os | < 9.2\(2\) | Yes |
| Hardware | cisco | n9k-c92304qc | - | No |
| Operating System | cisco | nx-os | < 7.0\(3\)i7\(5\) | Yes |
| Operating System | cisco | nx-os | < 9.2\(2\) | Yes |
| Hardware | cisco | n9k-c9232c | - | No |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For cisco's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.