CVE-2017-6613 Information

Description

A vulnerability in the DNS input packet processor for Cisco Prime Network Registrar could allow an unauthenticated remote attacker to cause the DNS process to momentarily restart which could lead to a partial denial of service (DoS) condition on the affected system. The vulnerability is due to incomplete DNS packet header validation when the packet is received by the application. An attacker could exploit this vulnerability by sending a malformed DNS packet to the application. An exploit could allow the attacker to cause the DNS process to restart which could lead to a DoS condition. This vulnerability affects Cisco Prime Network Registrar on all software versions prior to 8.3.5. Cisco Bug IDs: CSCvb55412.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L

Reference

http://www.securityfocus.com/bid/97924 http://www.securitytracker.com/id/1038331 https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170419-prime-dns

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

LOW

Base Severity

5.8