CVE-2020-3526

A vulnerability in the Common Open Policy Service (COPS) engine of Cisco IOS XE Software on Cisco cBR-8 Converged Broadband Routers could allow an unauthenticated, remote attacker to crash a device. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending a malformed COPS message to the device. A successful exploit could allow the attacker to crash the device.

CVSS v3 8.6 HIGH
CVSS v2.0 7.8 HIGH

8.6^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

7.8^/10

CVSS v2.0 : HIGH

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

Exploitability : 10.0 / Impact : 6.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-COPS-VLD-MpbTvGEW	Vendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-COPS-VLD-MpbTvGEW	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:cisco:ios_xe:17.2:*:*:*:*:*:*:*

cpe:2.3:h:cisco:cbr-8:-:*:*:*:*:*:*:*

History

21 Nov 2024, 05:31

Type	Values Removed	Values Added
References	~~() https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-COPS-VLD-MpbTvGEW - Vendor Advisory~~	() https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-COPS-VLD-MpbTvGEW - Vendor Advisory

Information

Published : 2020-09-24 18:15

Updated : 2024-11-21 05:31

NVD link : CVE-2020-3526

Mitre link : CVE-2020-3526

CVE.ORG link : CVE-2020-3526

JSON object : View

Products Affected

cisco

ios_xe
cbr-8

CWE

CWE-20

Improper Input Validation

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