Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
NONE Availability impact
COMPLETE network
low complexity
cisco
nessus
Published: 2018-03-28
Updated: 2019-10-09
Summary
A vulnerability in the Switch Integrated Security Features of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an interface queue wedge. The vulnerability is due to incorrect handling of crafted IPv6 packets. An attacker could exploit this vulnerability by sending crafted IPv6 packets through the device. An exploit could allow the attacker to cause an interface queue wedge. This vulnerability affects the Cisco cBR-8 Converged Broadband Router, Cisco ASR 1000 Series Aggregation Services Routers, and Cisco Cloud Services Router 1000V Series when configured with IPv6. In the field and internal testing, this vulnerability was only observed or reproduced on the Cisco cBR-8 Converged Broadband Router. The Cisco ASR 1000 Series Aggregation Services Routers and Cisco Cloud Services Router 1000V Series contain the same code logic, so affected trains have had the code fix applied; however, on these two products, the vulnerability has not been observed in the field or successfully reproduced internally. Cisco Bug IDs: CSCvd75185.
Vulnerable Configurations
| Part | Description | Count |
| OS | Cisco | 1 |
Nessus
| NASL family | CISCO |
| NASL id | CISCO-SA-20180328-SISF.NASL |
| description | According to its self-reported version, Cisco IOS XE Software is affected by a denial of service (DoS) vulnerability in the Switch Integrated Security Features due to incorrect handling of crafted IPv6 packets. An unauthenticated, remote attacker can exploit this, by sending crafted IPv6 packets to an affected device, to cause an interface queue wedge, a DoS condition. Please see the included Cisco BIDs and Cisco Security Advisory for more information. Note that Nessus has not tested for this issue but has instead relied only on the application |
| last seen | 2020-06-01 |
| modified | 2020-06-02 |
| plugin id | 132078 |
| published | 2019-12-17 |
| reporter | This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. |
| source | https://www.tenable.com/plugins/nessus/132078 |
| title | Cisco IOS XE Software Switch Integrated Security Features IPv6 DoS (cisco-sa-20180328-sisf) |