CVE-2020-3415

CVSS V2 High 7.9 CVSS V3 High 8.8

Description

A vulnerability in the Data Management Engine (DME) of Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to execute arbitrary code with administrative privileges or cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending a crafted Cisco Discovery Protocol packet to a Layer 2-adjacent affected device. A successful exploit could allow the attacker to execute arbitrary code with administrative privileges or cause the Cisco Discovery Protocol process to crash and restart multiple times, causing the affected device to reload and resulting in a DoS condition. Note: Cisco Discovery Protocol is a Layer 2 protocol. To exploit this vulnerability, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent). Exploitation of this vulnerability also requires jumbo frames to be enabled on the interface that receives the crafted Cisco Discovery Protocol packets on the affected device.

Overview

CVE ID
CVE-2020-3415

Assigner
ykramarz@cisco.com

Vulnerability Status
Analyzed

Published Version
2020-08-27T16:15:12

Last Modified Date
2020-09-03T20:32:40

Weakness Enumerations

CWE	URL
CWE-787	http://cwe.mitre.org/data/definitions/787.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
		AND
cpe:2.3:o:cisco:nx-os:-:::::::*	1	OR
cpe:2.3:h:cisco:nexus_3016:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_3048:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_3064:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_3064-t:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_31108pc-v:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_31108tc-v:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_31128pq:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_3132c-z:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_3132q:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_3132q-v:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_3132q-xl:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_3164q:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_3172:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_3172pq-xl:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_3172tq:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_3172tq-32t:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_3172tq-xl:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_3232c:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_3264c-e:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_3264q:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_3408-s:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_34180yc:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_3432d-s:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_3464c:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_3524:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_3524-x:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_3524-xl:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_3548:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_3548-x:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_3548-xl:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_36180yc-r:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_3636c-r:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_92160yc-x:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_92300yc:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_92304qc:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_92348gc-x:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_9236c:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_9272q:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_93108tc-ex:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_93108tc-fx:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_93120tx:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_93128tx:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_93180lc-ex:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_93180yc-ex:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_93180yc-fx:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_93216tc-fx2:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_93240yc-fx2:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_9332c:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_9332pq:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_93360yc-fx2:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_9336c-fx2:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_9336pq_aci_spine:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_9348gc-fxp:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_9364c:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_9372px:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_9372px-e:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_9372tx:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_9372tx-e:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_9396px:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_9396tx:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_9504:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_9508:-:::::::*	0	OR
cpe:2.3:h:cisco:nexus_9516:-:::::::*	0	OR
		AND
cpe:2.3:o:cisco:nx-os::::::::	1	OR	4.0	4.0\(4h\)
cpe:2.3:h:cisco:ucs_64108:-:::::::*	0	OR
cpe:2.3:h:cisco:ucs_6454:-:::::::*	0	OR

CVSS Version 2

Version
2.0

Vector String
AV:A/AC:M/Au:N/C:C/I:C/A:C

Access Vector
ADJACENT_NETWORK

Access Compatibility
MEDIUM

Authentication
NONE

Confidentiality Impact
COMPLETE

Integrity Impact
COMPLETE

Availability Impact
COMPLETE

Base Score
7.9

Severity
HIGH

Exploitability Score
5.5

Impact Score
10

CVSS Version 3

Version
3.1

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

Attack Vector
ADJACENT_NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
HIGH

Base Score
8.8

Base Severity
HIGH

Exploitability Score
2.8

Impact Score
5.9

References

Reference URL	Reference Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-dme-rce-cbE3nhZS	Vendor Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2020-3415
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-3415

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 16:27:09				Added to TrackCVE
2022-12-04 21:40:11	psirt@cisco.com	ykramarz@cisco.com	CVE Assigner	updated
2022-12-04 21:40:11	2020-08-27T16:15Z	2020-08-27T16:15:12	CVE Published Date	updated
2022-12-04 21:40:11		2020-09-03T20:32:40	CVE Modified Date	updated
2022-12-04 21:40:11		Analyzed	Vulnerability Status	updated