Cisco · IOS and IOS XE Software
CVE-2017-12240
Cisco IOS and IOS XE Software DHCP Remote Code Execution Vulnerability
Cos'è
The DHCP relay subsystem of Cisco IOS 12.2 through 15.6 and Cisco IOS XE Software contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code and gain full control of an affected system. The attacker could also cause an affected system to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to a buffer overflow condition in the DHCP relay subsystem of the affected software. An attacker could exploit this vulnerability by sending a crafted DHCP Version 4 (DHCPv4) packet to an affected system. A successful exploit could allow the attacker to execute arbitrary code and gain full control of the affected system or cause the affected system to reload, resulting in a DoS condition. Cisco Bug IDs: CSCsm45390, CSCuw77959.
CISA: The Dynamic Host Configuration Protocol (DHCP) relay subsystem of Cisco IOS and Cisco IOS XE Software contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code and gain full control of an affected system.
Cosa fare
Apply updates per vendor instructions.
Scadenza per le agenzie federali USA: 24 marzo 2022
- Aggiunta all'elenco CISA
- 3 marzo 2022
- Pubblicato
- 28 settembre 2017
- Gravità
- Critica 9,8 CVSS 3.1
- Probabilità di attacchi nei prossimi 30 giorni (EPSS)
- 14% tra il 3,5% più alto di tutte le vulnerabilità note
- Tipo di debolezza
- CWE-20
- Più dettagli
- NVD · CVE.org · CISA
Tutte le fonti (5)
Altre falle sfruttate di Cisco
| Aggiunto | Vulnerabilità | Prodotto | Gravità | Probabilità di attacco |
|---|---|---|---|---|
| 19 apr 2023 | SNMP Remote Code Execution | IOS and IOS XE Software | Alta 8,8 | 21% |
| 3 mar 2022 | IOS Software and Cisco IOS XE Software UDP Packet Processing Denial-of-Service | IOS and IOS XE Software | Alta 7,5 | 6,2% |
| 3 mar 2022 | IOS Software and Cisco IOS XE Software Denial-of-Service | IOS and IOS XE Software | Media 6,5 | 2,1% |
| 3 mar 2022 | SNMP Remote Code Execution | IOS and IOS XE Software | Alta 8,8 | 70% |
| 3 mar 2022 | SNMP Remote Code Execution | IOS and IOS XE Software | Alta 8,8 | 45% |
| 3 mar 2022 | SNMP Remote Code Execution | IOS and IOS XE Software | Alta 8,8 | 11% |
| 3 mar 2022 | SNMP Remote Code Execution | IOS and IOS XE Software | Alta 8,8 | 11% |
| 3 mar 2022 | SNMP Remote Code Execution | IOS and IOS XE Software | Alta 8,8 | 11% |
Fonti: Known Exploited Vulnerabilities (CISA, pubblico dominio), CVE records (cve.org) e EPSS (FIRST). La probabilità di attacco è la stima EPSS che qualcuno provi a sfruttare la falla nei prossimi 30 giorni.