Vulnerability Description
A vulnerability in the file system permissions of Cisco IOS XE Software could allow an authenticated, local attacker to obtain read and write access to critical configuration or system files. The vulnerability is due to insufficient file system permissions on an affected device. An attacker could exploit this vulnerability by connecting to an affected device's guest shell, and accessing or modifying restricted files. A successful exploit could allow the attacker to view or modify restricted information or configurations that are normally not accessible to system administrators.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Ios Xe | 16.12.1 |
| Cisco | 1100-4G Integrated Services Router | - |
| Cisco | 1100-4Gltegb Integrated Services Router | - |
| Cisco | 1100-4Gltena Integrated Services Router | - |
| Cisco | 1100-4P Integrated Services Router | - |
| Cisco | 1100-6G Integrated Services Router | - |
| Cisco | 1100-8P Integrated Services Router | - |
| Cisco | 1100-Lte Integrated Services Router | - |
| Cisco | 1100 Integrated Services Router | - |
| Cisco | 1101-4P Integrated Services Router | - |
| Cisco | 1101 Integrated Services Router | - |
| Cisco | 1109-2P Integrated Services Router | - |
| Cisco | 1109-4P Integrated Services Router | - |
| Cisco | 1109 Integrated Services Router | - |
| Cisco | 1111X-8P Integrated Services Router | - |
| Cisco | 1111X Integrated Services Router | - |
| Cisco | 111X Integrated Services Router | - |
| Cisco | 1120 Integrated Services Router | - |
| Cisco | 1160 Integrated Services Router | - |
| Cisco | 4221 Integrated Services Router | - |
Related Weaknesses (CWE)
References
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-uVendor Advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-uVendor Advisory
FAQ
What is CVE-2020-3503?
CVE-2020-3503 is a vulnerability with a CVSS score of 6.0 (MEDIUM). A vulnerability in the file system permissions of Cisco IOS XE Software could allow an authenticated, local attacker to obtain read and write access to critical configuration or system files. The vuln...
How severe is CVE-2020-3503?
CVE-2020-3503 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-2020-3503?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Ios Xe, Cisco 1100-4G Integrated Services Router, Cisco 1100-4Gltegb Integrated Services Router, Cisco 1100-4Gltena Integrated Services Router, Cisco 1100-4P Integrated Services Router.