Cisco IOS XE Software OSPFv2 DoS (cisco-sa-iosxe-ospf-dos-dR9Sfrxp)

high Nessus Plugin ID 193264

Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, Cisco IOS-XE Software is affected by a vulnerability.

- A vulnerability in the OSPF version 2 (OSPFv2) feature of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to improper validation of OSPF updates that are processed by a device. An attacker could exploit this vulnerability by sending a malformed OSPF update to the device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.

Please see the included Cisco BIDs and Cisco Security Advisory for more information.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to the relevant fixed version referenced in Cisco bug ID CSCwf51268

See Also

http://www.nessus.org/u?e3756ed0

http://www.nessus.org/u?a1da659d

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwf51268

Plugin Details

Severity: High

ID: 193264

File Name: cisco-sa-iosxe-ospf-dos-dR9Sfrxp.nasl

Version: 1.0

Type: combined

Family: CISCO

Published: 4/12/2024

Updated: 4/12/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 4.5

Vector: CVSS2#AV:A/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2024-20313

CVSS v3

Risk Factor: High

Base Score: 7.4

Temporal Score: 6.4

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:cisco:ios_xe

Required KB Items: Host/Cisco/IOS-XE/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 3/27/2024

Vulnerability Publication Date: 3/27/2024

Reference Information

CVE: CVE-2024-20313

CWE: 120

CISCO-SA: cisco-sa-iosxe-ospf-dos-dR9Sfrxp

IAVA: 2024-A-0188

CISCO-BUG-ID: CSCwf51268