Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Nx-Os | >= 7.3, < 8.1\(1a\) |
| Cisco | Mds 9706 | - |
| Cisco | Mds 9710 | - |
| Cisco | Mds 9718 | - |
| Cisco | 7000 10-Slot | - |
| Cisco | 7000 18-Slot | - |
| Cisco | 7000 4-Slot | - |
| Cisco | 7000 9-Slot | - |
| Cisco | 7700 10-Slot | - |
| Cisco | 7700 18-Slot | - |
| Cisco | 7700 2-Slot | - |
| Cisco | 7700 6-Slot | - |
| Cisco | N77-F312Ck-26 | - |
| Cisco | N77-F324Fq-25 | - |
| Cisco | N77-F348Xp-23 | - |
| Cisco | N77-F430Cq-36 | - |
| Cisco | N77-M312Cq-26L | - |
| Cisco | N77-M324Fq-25L | - |
| Cisco | N77-M348Xp-23L | - |
| Cisco | N7K-F248Xp-25E | - |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/108375Broken LinkThird Party AdvisoryVDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2Vendor Advisory
- http://www.securityfocus.com/bid/108375Broken LinkThird Party AdvisoryVDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-2Vendor Advisory
FAQ
What is CVE-2019-1809?
CVE-2019-1809 is a vulnerability with a CVSS score of 6.7 (MEDIUM). 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 pa...
How severe is CVE-2019-1809?
CVE-2019-1809 has been rated MEDIUM with a CVSS base score of 6.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-1809?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Nx-Os, Cisco Mds 9706, Cisco Mds 9710, Cisco Mds 9718, Cisco 7000 10-Slot.