Veille CVE
CVE-2018-0172
8.6 Élevée Exploitée activementCatalogue CISA KEV — Cisco IOS and IOS XE Software Improper Input Validation Vulnerability
Ajoutée le 03/03/2022 · Échéance de correction (agences US) : 17/03/2022
Action requise : Apply updates per vendor instructions.
Description
A vulnerability in the DHCP option 82 encapsulation functionality of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability exists because the affected software performs incomplete input validation of option 82 information that it receives in DHCP Version 4 (DHCPv4) packets from DHCP relay agents. An attacker could exploit this vulnerability by sending a crafted DHCPv4 packet to an affected device. A successful exploit could allow the attacker to cause a heap overflow condition on the affected device, which will cause the device to reload and result in a DoS condition. Cisco Bug IDs: CSCvg62730.
Produits concernés
Scores CVSS
| Version | Score | Source | Vecteur |
|---|---|---|---|
| 3.1 | 8.6 Élevée | nvd@nist.gov (NVD) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H |
| 3.1 | 8.6 Élevée | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H |
| 2.0 | 7.8 Élevée | nvd@nist.gov (NVD) | AV:N/AC:L/Au:N/C:N/I:N/A:C |
Faiblesses (CWE)
Références
- http://www.securityfocus.com/bid/103552 Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1040591 Third Party AdvisoryVDB Entry
- https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04 Third Party AdvisoryUS Government Resource
- https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05 Third Party AdvisoryUS Government Resource
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-dhcpr1 Vendor Advisory
- https://www.tenable.com/security/research/tra-2018-06 Third Party Advisory
- http://www.securityfocus.com/bid/103552 Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1040591 Third Party AdvisoryVDB Entry
- https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04 Third Party AdvisoryUS Government Resource
- https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05 Third Party AdvisoryUS Government Resource
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-dhcpr1 Vendor Advisory
- https://www.tenable.com/security/research/tra-2018-06 Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0172 US Government Resource