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

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CVE-2020-3201

Severity CVSS v4.0:
Pending analysis
Type:
CWE-20 Input Validation
Publication date:
03/06/2020
Last modified:
12/08/2021

Description

A vulnerability in the Tool Command Language (Tcl) interpreter of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, local attacker with privileged EXEC credentials to cause a denial of service (DoS) condition on an affected system. The vulnerability is due to insufficient input validation of data passed to the Tcl interpreter. An attacker could exploit this vulnerability by executing crafted Tcl arguments on an affected device. An exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.

Impact

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

Base Score: 6.00 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H

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

Base Score 3.x
6.00
Severity 3.x
MEDIUM
Vector 2.0
AV:L/AC:L/Au:N/C:N/I:N/A:C CVSS v2.0 Severity and Metrics:

Base Score: 4.90 MEDIUM
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C

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

Base Score 2.0
4.90
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:cisco:ios:12.2\(18\)ixa:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2\(18\)ixb:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2\(18\)ixb1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2\(18\)ixb2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2\(18\)ixc:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2\(18\)ixd:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2\(18\)ixd1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2\(18\)ixe:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2\(18\)ixf:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2\(18\)ixf1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2\(18\)ixg:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2\(18\)ixh:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2\(18\)ixh1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2\(18\)sxe:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2\(18\)sxe1:*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools