CVE-2020-3226 — HIGH (8.6) — White Hats Nepal

Vulnerability Description

A vulnerability in the Session Initiation Protocol (SIP) library of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient sanity checks on received SIP messages. An attacker could exploit this vulnerability by sending crafted SIP messages to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service condition.

CVSS Score

8.6

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Cisco	Ios	15.0\(2\)sg11a
Cisco	Ios Xe	3.10.0s

Related Weaknesses (CWE)

CWE-20

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sVendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sVendor Advisory

FAQ

What is CVE-2020-3226?

CVE-2020-3226 is a vulnerability with a CVSS score of 8.6 (HIGH). A vulnerability in the Session Initiation Protocol (SIP) library of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected devi...

How severe is CVE-2020-3226?

CVE-2020-3226 has been rated HIGH with a CVSS base score of 8.6/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-3226?

Check the references section above for vendor advisories and patch information. Affected products include: Cisco Ios, Cisco Ios Xe.