8.8
HIGH
CVE-2020-3119
"Cisco Discovery Protocol Cisco NX-OS Software Remote Code Execution Denial of Service"
Description

A vulnerability in the Cisco Discovery Protocol implementation for Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to execute arbitrary code or cause a reload on an affected device. The vulnerability exists because the Cisco Discovery Protocol parser does not properly validate input for certain fields in a Cisco Discovery Protocol message. An attacker could exploit this vulnerability by sending a malicious Cisco Discovery Protocol packet to an affected device. An successful exploit could allow the attacker to cause a stack overflow, which could allow the attacker to execute arbitrary code with administrative privileges on an affected device. 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).

INFO

Published Date :

Feb. 5, 2020, 6:15 p.m.

Last Modified :

Nov. 21, 2024, 5:30 a.m.

Source :

[email protected]

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

2.8
Public PoC/Exploit Available at Github

CVE-2020-3119 has a 2 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2020-3119 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Cisco nx-os
2 Cisco unified_computing_system
3 Cisco ucs_manager
4 Cisco nexus_5548p
5 Cisco nexus_5548up
6 Cisco nexus_5596up
7 Cisco nexus_3048
8 Cisco nexus_3548
9 Cisco nexus_5596t
10 Cisco nexus_56128p
11 Cisco nexus_5672up
12 Cisco nexus_6001
13 Cisco nexus_6004
14 Cisco nexus_3016
15 Cisco nexus_3064
16 Cisco nexus_3064-t
17 Cisco nexus_31108pc-v
18 Cisco nexus_31108tc-v
19 Cisco nexus_31128pq
20 Cisco nexus_3132c-z
21 Cisco nexus_3132q
22 Cisco nexus_3132q-v
23 Cisco nexus_3132q-xl
24 Cisco nexus_3164q
25 Cisco nexus_3172
26 Cisco nexus_3172pq-xl
27 Cisco nexus_3172tq
28 Cisco nexus_3172tq-32t
29 Cisco nexus_3172tq-xl
30 Cisco nexus_3232c_
31 Cisco nexus_3264c-e
32 Cisco nexus_3264q
33 Cisco nexus_3408-s
34 Cisco nexus_34180yc
35 Cisco nexus_3432d-s
36 Cisco nexus_3464c
37 Cisco nexus_3524
38 Cisco nexus_3524-x
39 Cisco nexus_3524-xl
40 Cisco nexus_3548-x
41 Cisco nexus_3548-xl
42 Cisco nexus_36180yc-r
43 Cisco nexus_3636c-r
44 Cisco nexus_9000v
45 Cisco nexus_92160yc-x
46 Cisco nexus_92300yc
47 Cisco nexus_92304qc
48 Cisco nexus_92348gc-x
49 Cisco nexus_9236c
50 Cisco nexus_9272q
51 Cisco nexus_93108tc-ex
52 Cisco nexus_93108tc-fx
53 Cisco nexus_93120tx
54 Cisco nexus_93128tx
55 Cisco nexus_93180lc-ex
56 Cisco nexus_93180yc-ex
57 Cisco nexus_93180yc-fx
58 Cisco nexus_93216tc-fx2
59 Cisco nexus_93240yc-fx2
60 Cisco nexus_9332c
61 Cisco nexus_9332pq
62 Cisco nexus_93360yc-fx2
63 Cisco nexus_9336c-fx2
64 Cisco nexus_9336pq_aci_spine
65 Cisco nexus_9348gc-fxp
66 Cisco nexus_9364c
67 Cisco nexus_9372px
68 Cisco nexus_9372px-e
69 Cisco nexus_9372tx
70 Cisco nexus_9372tx-e
71 Cisco nexus_9396px
72 Cisco nexus_9396tx
73 Cisco nexus_9504
74 Cisco nexus_9508
75 Cisco nexus_9516
76 Cisco nexus_5624q
77 Cisco nexus_5648q
78 Cisco nexus_5696q
79 Cisco ucs_6248up
80 Cisco ucs_6296up
81 Cisco ucs_6324
82 Cisco ucs_6300
83 Cisco ucs_64108
84 Cisco ucs_6454
: Total Affected Vendor : 1 | Products : 84
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2020-3119.

URL Resource
http://packetstormsecurity.com/files/156203/Cisco-Discovery-Protocol-CDP-Remote-Device-Takeover.html Third Party Advisory VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200205-nxos-cdp-rce Vendor Advisory
http://packetstormsecurity.com/files/156203/Cisco-Discovery-Protocol-CDP-Remote-Device-Takeover.html Third Party Advisory VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200205-nxos-cdp-rce Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

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routetonull/opencheck

Get Cisco PSIRT OpenVuln for a provided platform/version and renders a markdown report.

cisco cve api

Shell HTML

Updated: 3 years, 10 months ago
3 stars 2 fork 2 watcher
Born at : Dec. 20, 2020, 4:44 p.m. This repo has been linked 3 different CVEs too.
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epi052/CiscoNotes

Notes for Latest Cisco vulns

Updated: 11 months ago
4 stars 0 fork 0 watcher
Born at : Feb. 10, 2020, 3:24 a.m. This repo has been linked 6 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-3119 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-3119 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/156203/Cisco-Discovery-Protocol-CDP-Remote-Device-Takeover.html
    Added Reference https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200205-nxos-cdp-rce
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Feb. 12, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:A/AC:L/Au:N/C:C/I:C/A:C)
    Added CVSS V3.1 NIST AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type http://packetstormsecurity.com/files/156203/Cisco-Discovery-Protocol-CDP-Remote-Device-Takeover.html No Types Assigned http://packetstormsecurity.com/files/156203/Cisco-Discovery-Protocol-CDP-Remote-Device-Takeover.html Third Party Advisory, VDB Entry
    Changed Reference Type https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200205-nxos-cdp-rce No Types Assigned https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200205-nxos-cdp-rce Vendor Advisory
    Added CWE NIST CWE-787
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions from (including) 7.0\(3\)f2 up to (excluding) 9.3\(2\) *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions from (including) 7.0\(3\)i up to (excluding) 7.0\(3\)i7\(8\) OR cpe:2.3:h:cisco:nexus_3016:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3048:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3064:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3064-t:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_31108pc-v:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_31108tc-v:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_31128pq:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3132c-z:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3132q:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3132q-v:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3132q-xl:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3164q:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3172:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3172pq-xl:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3172tq:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3172tq-32t:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3172tq-xl:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3232c_:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3264c-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3264q:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3408-s:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_34180yc:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3432d-s:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3464c:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3524:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3524-x:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3524-xl:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3548:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3548-x:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3548-xl:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_36180yc-r:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_3636c-r:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9000v:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_92160yc-x:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_92300yc:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_92304qc:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_92348gc-x:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9236c:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9272q:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93108tc-ex:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93108tc-fx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93120tx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93128tx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93180lc-ex:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93180yc-ex:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93180yc-fx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93216tc-fx2:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93240yc-fx2:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9332c:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9332pq:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93360yc-fx2:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9336c-fx2:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9336pq_aci_spine:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9348gc-fxp:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9364c:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9372px:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9372px-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9372tx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9372tx-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9396px:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9396tx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9504:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9508:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9516:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions from (including) 7.1 up to (excluding) 7.3\(6\)n1\(1\) OR cpe:2.3:h:cisco:nexus_5548p:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_5548up:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_5596t:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_5596up:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_56128p:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_5624q:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_5648q:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_5672up:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_5696q:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_6001:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_6004:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions up to (excluding) 9.3\(2\) *cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* versions from (including) 14.0 up to (excluding) 14.2\(1j\) OR cpe:2.3:h:cisco:nexus_9000v:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_92160yc-x:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_92300yc:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_92304qc:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_92348gc-x:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9236c:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9272q:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93108tc-ex:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93108tc-fx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93120tx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93128tx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93180lc-ex:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93180yc-ex:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93180yc-fx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93216tc-fx2:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93240yc-fx2:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9332c:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9332pq:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_93360yc-fx2:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9336c-fx2:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9336pq_aci_spine:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9348gc-fxp:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9364c:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9372px:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9372px-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9372tx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9372tx-e:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9396px:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9396tx:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9504:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9508:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:nexus_9516:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:a:cisco:ucs_manager:*:*:*:*:*:*:*:* versions up to (excluding) 3.2\(3m\) *cpe:2.3:a:cisco:ucs_manager:*:*:*:*:*:*:*:* versions from (including) 4.0 up to (excluding) 4.0\(4f\) OR cpe:2.3:h:cisco:ucs_6248up:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ucs_6296up:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ucs_6300:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ucs_6324:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ucs_64108:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:ucs_6454:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Feb. 05, 2020

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/156203/Cisco-Discovery-Protocol-CDP-Remote-Device-Takeover.html [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-3119 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2020-3119 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.12 }} 0.00%

score

0.47312

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: