Vulnerability in Cisco 1100-4g Integrated Services Router
CVE-2020-3503
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.
EPSS: 0.003 (20.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.0 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N.
Affected products
- 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_integrated_services_router
- Cisco 1100-lte_integrated_services_router
- Cisco 1101-4p_integrated_services_router
- Cisco 1101_integrated_services_router
Weakness classification (CWE)
Public proof-of-concept exploits
References
- psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-3503?
- CVE-2020-3503 is a medium-severity vulnerability in Cisco 1100-4g Integrated Services Router, classified under Improper Access Control. CVSS score: 6.0/10. Published 2020-09-24.
- How severe is CVE-2020-3503?
- Medium severity. CVSS v3 base score is 6.0 out of 10.
- Is CVE-2020-3503 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.