Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2020-3226

Severity CVSS v4.0:
Pending analysis
Type:
CWE-20 Input Validation
Publication date:
03/06/2020
Last modified:
17/09/2021

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.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.60 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
8.60
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:C CVSS v2.0 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete

Base Score 2.0
7.80
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:cisco:ios:15.0\(2\)sg11a:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.3\(3\)jaa1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.3\(3\)jpi:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.3\(3\)jpj:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.3\(3\)m:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.3\(3\)m1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.3\(3\)m2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.3\(3\)m3:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.3\(3\)m4:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.3\(3\)m5:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.3\(3\)m6:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.3\(3\)m7:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.3\(3\)m8:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.3\(3\)m8a:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.3\(3\)m9:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools