CVE-2020-3118
Cisco IOS XR Software Cisco Discovery Protocol Format String Vulnerability
Basic Information
- CVE State
- PUBLISHED
- Reserved Date
- December 12, 2019
- Published Date
- February 05, 2020
- Last Updated
- November 08, 2024
- Vendor
- Cisco
- Product
- Cisco IOS XR Software
- Description
- A vulnerability in the Cisco Discovery Protocol implementation for Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to execute arbitrary code or cause a reload on an affected device. The vulnerability is due to improper validation of string input from certain fields in Cisco Discovery Protocol messages. An attacker could exploit this vulnerability by sending a malicious Cisco Discovery Protocol packet to an affected device. A successful exploit could allow the attacker to cause a stack overflow, which could allow the attacker to execute arbitrary code with administrative privileges on an affected device. Cisco Discovery Protocol is a Layer 2 protocol. To exploit this vulnerability, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).
CVSS Scores
CVSS v3.0
8.8 - HIGH
Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC Information
- Exploitation
- active
- Technical Impact
- total
Exploit Status
- Exploited in the Wild
- Yes (added 2021-11-03 00:00:00 UTC) Source
References
Known Exploited Vulnerability Information
| Source | Added Date |
|---|---|
| CISA | 2021-11-03 00:00:00 UTC |