CISA KEV 정보
| 취약점명 | Cisco IOS XR Software Discovery Protocol Format String Vulnerability |
|---|---|
| 설명 | 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. |
| 조치사항 | Apply updates per vendor instructions. |
| 랜섬웨어 캠페인 악용 | Unknown |
| CWE | CWE-134 |
| 등록일 (KEV) | 2021-11-03 |
| 조치 기한 | 2022-05-03 |
| 추가 참고 | https://nvd.nist.gov/vuln/detail/CVE-2020-3118 |
NVD 상세 정보
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HAV:A/AC:L/Au:N/C:C/I:C/A:C설명: 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).
CWE: CWE-134 | CWE-787
참조
- http://packetstormsecurity.com/files/156203/Cisco-Discovery-Protocol-CDP-Remote-Device-Takeover.html [Third Party Advisory, VDB Entry]
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200205-iosxr-cdp-rce [Vendor Advisory]
- http://packetstormsecurity.com/files/156203/Cisco-Discovery-Protocol-CDP-Remote-Device-Takeover.html [Third Party Advisory, VDB Entry]
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200205-iosxr-cdp-rce [Vendor Advisory]
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-3118 [US Government Resource]
This product uses the NVD API but is not endorsed or certified by the NVD.