Cisco · IOS and IOS XE
CVE-2018-0171
Cisco IOS and IOS XE Software Smart Install Remote Code Execution Vulnerability
무엇인가
A vulnerability in the Smart Install feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition, or to execute arbitrary code on an affected device. The vulnerability is due to improper validation of packet data. An attacker could exploit this vulnerability by sending a crafted Smart Install message to an affected device on TCP port 4786. A successful exploit could allow the attacker to cause a buffer overflow on the affected device, which could have the following impacts: Triggering a reload of the device, Allowing the attacker to execute arbitrary code on the device, Causing an indefinite loop on the affected device that triggers a watchdog crash. Cisco Bug IDs: CSCvg76186.
CISA: Cisco IOS and IOS XE Software improperly validates packet data, allowing an unauthenticated, remote attacker to trigger a reload of an affected device, cause a denial-of-service (DoS) condition, or perform code execution on the affected device.
할 일
Apply updates per vendor instructions.
미국 연방 기관 조치 기한: 2022년 5월 3일
- CISA 목록에 추가됨
- 2021년 11월 3일
- 게시됨
- 2018년 3월 28일
- 심각도
- 높음 7.5 CVSS 3.1
- 향후 30일 내 공격 가능성(EPSS)
- 99.5% 알려진 모든 취약점 중 상위 0.1%
- 약점 유형
- CWE-20
- 자세히
- NVD · CVE.org · CISA
모든 참고 자료(6)
- https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04
- http://www.securitytracker.com/id/1040580
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-smi2
- https://www.darkreading.com/perimeter/attackers-exploit-cisco-switch-issue-as-vendor-warns-of-yet-another-cri…
- https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05
- http://www.securityfocus.com/bid/103538
Cisco의 다른 악용된 결함
| 추가됨 | 취약점 | 제품 | 심각도 | 공격 가능성 |
|---|---|---|---|---|
| 2025. 9. 29. | Software SNMP Denial of Service and Remote Code Execution | IOS and IOS XE | 높음 7.7 | 42% |
| 2023. 10. 10. | Group Encrypted Transport VPN Out-of-Bounds Write | IOS and IOS XE | 보통 6.6 | 2.5% |
| 2022. 3. 25. | Remote Code Execution | IOS and IOS XE | 치명적 9.8 | 99% |
| 2026. 10. 14. | Relative Path Traversal | Secure Email Gateway | 치명적 9.8 | 2.2% |
| 2026. 9. 30. | Hex Encoding | Catalyst SD-WAN Manager | 치명적 9.8 | 39% |
| 2026. 9. 16. | Incorrect Use of Privileged APIs | Identity Services Engine | 치명적 10.0 | 76% |
| 2026. 9. 14. | SQL Injection | Secure Email Gateway | 치명적 9.8 | 30% |
| 2026. 9. 9. | Firewall Management Center Authentication Bypass Using an Alternate Path or Channel | Secure Firewall Management Center (FMC) and Security Cloud Control (SCC) Firewall Management | 치명적 10.0 | 88% |
출처: Known Exploited Vulnerabilities(CISA, 퍼블릭 도메인), CVE records(cve.org), EPSS(FIRST). 공격 가능성은 누군가 향후 30일 안에 이 결함을 악용하려 할 확률에 대한 EPSS 추정치입니다.