CVE-2020-3118 — Cisco IOS XR Software Discovery Protocol Format String Vulnerability
CVE-2020-3118: Cisco IOS XR Software Discovery Protocol Format String Vulnerability
CISA Known Exploited Vulnerability (KEV)
| Vendor / project | Cisco |
| Product | IOS XR |
| Date added | 2021-11-03 |
| Due date | 2022-05-03 |
| Ransomware campaign use | Unknown |
Description
Cisco IOS XR improperly validates string input from certain fields in Cisco Discovery Protocol messages. Exploitation could allow an unauthenticated, adjacent attacker to execute code with administrative privileges or cause a reload on an affected device.
Required action (CISA)
Apply updates per vendor instructions.
Notes
https://nvd.nist.gov/vuln/detail/CVE-2020-3118
Weakness behind it
CISA records this vulnerability as an instance of CWE-134. From there the chain continues into CAPEC attack patterns and ATT&CK techniques, all inside this corpus.
References
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-3118
- KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog
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