MEDIUM · 6.0

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 vuln...

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

6.0

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE

Affected Products

VendorProductVersions
CiscoIos Xe16.12.1
Cisco1100-4G Integrated Services Router-
Cisco1100-4Gltegb Integrated Services Router-
Cisco1100-4Gltena Integrated Services Router-
Cisco1100-4P Integrated Services Router-
Cisco1100-6G Integrated Services Router-
Cisco1100-8P Integrated Services Router-
Cisco1100-Lte Integrated Services Router-
Cisco1100 Integrated Services Router-
Cisco1101-4P Integrated Services Router-
Cisco1101 Integrated Services Router-
Cisco1109-2P Integrated Services Router-
Cisco1109-4P Integrated Services Router-
Cisco1109 Integrated Services Router-
Cisco1111X-8P Integrated Services Router-
Cisco1111X Integrated Services Router-
Cisco111X Integrated Services Router-
Cisco1120 Integrated Services Router-
Cisco1160 Integrated Services Router-
Cisco4221 Integrated Services Router-

Related Weaknesses (CWE)

References

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.