Vulnerability Description
A vulnerability in the CLI implementation of a specific command used for image maintenance for Cisco NX-OS Software could allow an authenticated, local attacker to overwrite any file on the file system including system files. These file overwrites by the attacker are accomplished at the root privilege level. The vulnerability occurs because there is no verification of user-input parameters and or digital-signature verification for image files when using a specific CLI command. An attacker could exploit this vulnerability by authenticating to the device and issuing a command at the CLI. Because an exploit could allow the attacker to overwrite any file on the disk, including system files, a denial of service (DoS) condition could occur. The attacker must have valid administrator credentials for the affected device to exploit this vulnerability.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Nx-Os | < 7.0\(3\)i4\(9\) |
| Cisco | Nexus 3000 | - |
| Cisco | Nexus 3100 | - |
| Cisco | Nexus 3100-Z | - |
| Cisco | Nexus 3100V | - |
| Cisco | Nexus 3200 | - |
| Cisco | Nexus 3400 | - |
| Cisco | Nexus 3500 | - |
| Cisco | Nexus 3524-X | - |
| Cisco | Nexus 3524-Xl | - |
| Cisco | Nexus 3548-X | - |
| Cisco | Nexus 3548-Xl | - |
| Cisco | Nexus 9000 | - |
| Cisco | Nexus 9200 | - |
| Cisco | Nexus 9300 | - |
| Cisco | Nexus 36180Yc-R | - |
| Cisco | Nexus 3636C-R | - |
| Cisco | Nexus 9504 | - |
| Cisco | Nexus 9508 | - |
| Cisco | Nexus 9516 | - |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/108378Third Party AdvisoryVDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2Vendor Advisory
- http://www.securityfocus.com/bid/108378Third Party AdvisoryVDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2Vendor Advisory
FAQ
What is CVE-2019-1729?
CVE-2019-1729 is a vulnerability with a CVSS score of 6.0 (MEDIUM). A vulnerability in the CLI implementation of a specific command used for image maintenance for Cisco NX-OS Software could allow an authenticated, local attacker to overwrite any file on the file syste...
How severe is CVE-2019-1729?
CVE-2019-1729 has been rated MEDIUM with a CVSS base score of 6.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-1729?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Nx-Os, Cisco Nexus 3000, Cisco Nexus 3100, Cisco Nexus 3100-Z, Cisco Nexus 3100V.