Cisco NX-OS Software Privilege Escalation Vulnerability
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-285.
Summary
A vulnerability in the user account management interface of Cisco NX-OS Software could allow an authenticated, local attacker to gain elevated privileges on an affected device. The vulnerability is due to an incorrect authorization check of user accounts and their associated Group ID (GID). An attacker could exploit this vulnerability by taking advantage of a logic error that will permit the use of higher privileged commands than what is necessarily assigned. A successful exploit could allow an attacker to execute commands with elevated privileges on the underlying Linux shell of an affected device. Nexus 7000 and 7700 Series Switches are affected in versions prior to 6.2(22), 8.2(3), and 8.3(2). Nexus 3000 Series Switches are affected in versions prior to 7.0(3)I7(4). Nexus 3500 Platform Switches are affected in versions prior to 7.0(3)I7(4). Nexus 3600 Platform Switches are affected in versions prior to 7.0(3)F3(5). Nexus 9000 Series Switches-Standalone are affected in versions prior to 7.0(3)I7(4). Nexus 9500 R-Series Line Cards and Fabric Modules are affected in versions prior to 7.0(3)F3(5).
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Cisco | Nexus 7000 and 7700 Series Switches | before 6.2(22); before 8.2(3); before 8.3(2) | 6.2(22), 8.2(3), 8.3(2) | Patch available | CNA |
| Cisco | Nexus 3000 Series Switches | before 7.0(3)I7(4) | 7.0(3)I7(4) | Patch available | CNA |
| Cisco | Nexus 3500 Platform Switches | before 7.0(3)I7(4) | 7.0(3)I7(4) | Patch available | CNA |
| Cisco | Nexus 3600 Platform Switches | before 7.0(3)F3(5) | 7.0(3)F3(5) | Patch available | CNA |
| Cisco | Nexus 9000 Series Switches-Standalone | before 7.0(3)I7(4) | 7.0(3)I7(4) | Patch available | CNA |
| Cisco | Nexus 9500 R-Series Line Cards and Fabric Modules | before 7.0(3)F3(5) | 7.0(3)F3(5) | Patch available | CNA |
- Nexus 7000 and 7700 Series Switches VendorCisco Affected before 6.2(22); before 8.2(3); before 8.3(2) Fixed in 6.2(22), 8.2(3), 8.3(2) Patch available CNA
- Nexus 3000 Series Switches VendorCisco Affected before 7.0(3)I7(4) Fixed in 7.0(3)I7(4) Patch available CNA
- Nexus 3500 Platform Switches VendorCisco Affected before 7.0(3)I7(4) Fixed in 7.0(3)I7(4) Patch available CNA
- Nexus 3600 Platform Switches VendorCisco Affected before 7.0(3)F3(5) Fixed in 7.0(3)F3(5) Patch available CNA
- Nexus 9000 Series Switches-Standalone VendorCisco Affected before 7.0(3)I7(4) Fixed in 7.0(3)I7(4) Patch available CNA
- Nexus 9500 R-Series Line Cards and Fabric Modules VendorCisco Affected before 7.0(3)F3(5) Fixed in 7.0(3)F3(5) Patch available CNA
CPE configurations NVD · 11
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* | before 7.0\(3\)i7\(4\) | Vulnerable | Cisco |
| cpe:2.3:h:cisco:nexus_3000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:nexus_3500:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:nexus_9000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* | before 7.0\(3\)f3\(5\) | Vulnerable | Cisco |
| cpe:2.3:h:cisco:nexus_3600:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:nexus_9500:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* | after 8.2\(3\), before 8.3\(2\) | Vulnerable | Cisco |
| cpe:2.3:h:cisco:nexus_7000:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
| cpe:2.3:h:cisco:nexus_7700:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Cisco |
- cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* Versions before 7.0\(3\)i7\(4\) Vulnerable ·Cisco
- cpe:2.3:h:cisco:nexus_3000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:nexus_3500:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:nexus_9000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* Versions before 7.0\(3\)f3\(5\) Vulnerable ·Cisco
- cpe:2.3:h:cisco:nexus_3600:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:nexus_9500:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* Versions after 8.2\(3\), before 8.3\(2\) Vulnerable ·Cisco
- cpe:2.3:h:cisco:nexus_7000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
- cpe:2.3:h:cisco:nexus_7700:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
Remediation
- Fix · CNA Nexus 7000 and 7700 Series Switches (Cisco) Fixed in 6.2(22), 8.2(3), 8.3(2)
- Fix · CNA Nexus 3000 Series Switches (Cisco) Fixed in 7.0(3)I7(4)
- Fix · CNA Nexus 3500 Platform Switches (Cisco) Fixed in 7.0(3)I7(4)
- Fix · CNA Nexus 3600 Platform Switches (Cisco) Fixed in 7.0(3)F3(5)
- Fix · CNA Nexus 9000 Series Switches-Standalone (Cisco) Fixed in 7.0(3)I7(4)
- Fix · CNA Nexus 9500 R-Series Line Cards and Fabric Modules (Cisco) Fixed in 7.0(3)F3(5)
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Cisco Nexus 3600 Platform Switches, Nexus 9500 R-Series Line Cards and Fabric Modules 7.0(3)F3(5)
6 records Highest priority Priority LOW 6 LOW
Other records, highest priority first
- TI-2019-01232 Cisco NX-OS Software NX-API Arbitrary Code Execution VulnerabilityPriority LOW 37
- TI-2019-01230 Cisco NX-OS Software Privilege Escalation VulnerabilityPriority LOW 36
- TI-2019-01229 Cisco NX-OS Software Privilege Escalation VulnerabilityPriority LOW 36
- Release ·
Cisco Nexus 3000 Series Switches, Nexus 3500 Platform Switches 7.0(3)I7(4)
4 records Highest priority Priority LOW 4 LOW
Other records, highest priority first
- TI-2019-01230 Cisco NX-OS Software Privilege Escalation VulnerabilityPriority LOW 36
- TI-2019-01229 Cisco NX-OS Software Privilege Escalation VulnerabilityPriority LOW 36
- TI-2019-01233 Cisco NX-OS Software CLI Command Injection Vulnerability (CVE-2019-1606)Priority LOW 34
Show 1 more group
- Release ·
Cisco Nexus 9000 Series Switches-Standalone 7.0(3)I7(4)
3 records Highest priority Priority LOW 3 LOW
Other records, highest priority first
- TI-2019-01230 Cisco NX-OS Software Privilege Escalation VulnerabilityPriority LOW 36
- TI-2019-01229 Cisco NX-OS Software Privilege Escalation VulnerabilityPriority LOW 36
Timeline
- 2026-10-02 Threatist record created from CVE-2019-1604
- 2026-10-03 Alias added: GHSA-jcrc-3h9p-854j
References
More Cisco Nx-os vulnerabilities
- TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
- TI-2024-13332 Cisco NX-OS Software CLI Command Injection Vulnerability KEVCVSS 3.1MEDIUM 6.7
- TI-2018-00260 Improper input validation in Cisco NX-OS unknown CVSS 3.0CRITICAL 9.8
- TI-2019-01226 Cisco NX-OS Software Netstack Denial of Service Vulnerability CVSS 3.1HIGH 8.6
- TI-2022-05183 Cisco NX-OS Software Cisco Fabric Services Over IP Denial of Service Vulnerability CVSS 3.1HIGH 8.6
- TI-2022-05182 Cisco Nexus 9000 Series Switches Bidirectional Forwarding Detection Denial of Service Vulnerability CVSS 3.1HIGH 8.6
Sources
- CVE-2019-1604 · CVE Program
- CVE-2019-1604 · NVD
- FIRST EPSS
- GHSA-jcrc-3h9p-854j · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences