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CVE-2017-12240

9.8 Critique Exploitée activement

Publiée le 29/09/2017 à 03:34 · Modifiée le 17/06/2026 à 03:02 · Analysée par le NVD · Source : psirt@cisco.com

Catalogue CISA KEV — Cisco IOS and IOS XE Software DHCP Remote Code Execution Vulnerability

Ajoutée le 03/03/2022 · Échéance de correction (agences US) : 24/03/2022

Action requise : Apply updates per vendor instructions.

Description

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.

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Produits concernés

Scores CVSS

VersionScoreSourceVecteur
3.1 9.8 Critique nvd@nist.gov (NVD) CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1 9.8 Critique 134c704f-9b21-4f2e-91b3-4a467353bcc0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
2.0 10.0 Élevée nvd@nist.gov (NVD) AV:N/AC:L/Au:N/C:C/I:C/A:C

Faiblesses (CWE)

Références

Ailleurs