Detections
Analytics
Cisco Identity Services Engine SSL Renegotiation Denial of Service Vulnerability
high Nessus Plugin ID 126101
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Synopsis
The remote device is missing a vendor-supplied security patchDescription
According to its self-reported version, Cisco Identity Services Engine Software is affected by a vulnerability in the web interface of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to trigger high CPU usage, resulting in a denial of service (DoS) condition. The vulnerability is due to improper handling of Secure Sockets Layer (SSL) renegotiation requests. An attacker could exploit this vulnerability by sending renegotiation requests at a high rate. An successful exploit could increase the resource usage on the system, eventually leading to a DoS condition.Please see the included Cisco BIDs and Cisco Security Advisory for more information
Solution
Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvo10487See Also
Plugin Details
Severity: High
ID: 126101
File Name: cisco-sa-20190417-ise-ssl-dos.nasl
Version: 1.8
Type: local
Family: CISCO
Published: 6/21/2019
Updated: 4/6/2021
Configuration: Enable paranoid mode
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3.6
CVSS v2
Risk Factor: High
Base Score: 7.8
Temporal Score: 5.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS Score Source: CVE-2019-1718
CVSS v3
Risk Factor: High
Base Score: 7.5
Temporal Score: 6.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/h:cisco:identity_services_engine, cpe:/a:cisco:identity_services_engine, cpe:/a:cisco:identity_services_engine_software
Required KB Items: Settings/ParanoidReport, Host/Cisco/ISE/version
Exploit Ease: No known exploits are available
Patch Publication Date: 4/17/2019
Vulnerability Publication Date: 4/17/2019
Reference Information
CVE: CVE-2019-1718
BID: 108030