Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2020-3217

Severity CVSS v4.0:
Pending analysis
Type:
CWE-20 Input Validation
Publication date:
03/06/2020
Last modified:
18/10/2021

Description

A vulnerability in the Topology Discovery Service of Cisco One Platform Kit (onePK) in Cisco IOS Software, Cisco IOS XE Software, Cisco IOS XR Software, and Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to execute arbitrary code or cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient length restrictions when the onePK Topology Discovery Service parses Cisco Discovery Protocol messages. An attacker could exploit this vulnerability by sending a malicious Cisco Discovery Protocol message to an affected device. An exploit could allow the attacker to cause a stack overflow, which could allow the attacker to execute arbitrary code with administrative privileges, or to cause a process crash, which could result in a reload of the device and cause a DoS condition.

Impact

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

Base Score: 8.80 HIGH
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x
8.80
Severity 3.x
HIGH
Vector 2.0
AV:A/AC:L/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 8.30 HIGH
Vector: AV:A/AC:L/Au:N/C:C/I:C/A:C

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

Base Score 2.0
8.30
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:cisco:ios:12.2\(6\)i1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.4\(25e\)jao7:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.0\(2\)sg11a:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.1\(3\)svr1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.2\(1\)sy:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.2\(1\)sy0a:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.2\(1\)sy1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.2\(1\)sy1a:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.2\(1\)sy2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.2\(1\)sy3:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.2\(1\)sy4:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.2\(1\)sy5:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.2\(1\)sy6:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.2\(1\)sy7:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:15.2\(1\)sy8:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools