CVE-2021-20698

9.8

CRITICAL

Sharp NEC Displays Remote Code Execution Vulnerability

Description

Sharp NEC Displays (UN462A R1.300 and prior to it, UN462VA R1.300 and prior to it, UN492S R1.300 and prior to it, UN492VS R1.300 and prior to it, UN552A R1.300 and prior to it, UN552S R1.300 and prior to it, UN552VS R1.300 and prior to it, UN552 R1.300 and prior to it, UN552V R1.300 and prior to it, UX552S R1.300 and prior to it, UX552 R1.300 and prior to it, V864Q R2.000 and prior to it, C861Q R2.000 and prior to it, P754Q R2.000 and prior to it, V754Q R2.000 and prior to it, C751Q R2.000 and prior to it, V984Q R2.000 and prior to it, C981Q R2.000 and prior to it, P654Q R2.000 and prior to it, V654Q R2.000 and prior to it, C651Q R2.000 and prior to it, V554Q R2.000 and prior to it, P404 R3.200 and prior to it, P484 R3.200 and prior to it, P554 R3.200 and prior to it, V404 R3.200 and prior to it, V484 R3.200 and prior to it, V554 R3.200 and prior to it, V404-T R3.200 and prior to it, V484-T R3.200 and prior to it, V554-T R3.200 and prior to it, C501 R2.000 and prior to it, C551 R2.000 and prior to it, C431 R2.000 and prior to it) allows an attacker to obtain root privileges and execute remote code by sending unintended parameters that contain specific characters in http request.

INFO

Published Date :

June 7, 2021, 2:15 p.m.

Last Modified :

Nov. 21, 2024, 5:47 a.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9 Public PoC/Exploit Available at Github

CVE-2021-20698 has a 1 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-2021-20698 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
1	Sharp-nec-displays	un462a_firmware
2	Sharp-nec-displays	un462va_firmware
3	Sharp-nec-displays	un492s_firmware
4	Sharp-nec-displays	un492vs_firmware
5	Sharp-nec-displays	un552a_firmware
6	Sharp-nec-displays	un552s_firmware
7	Sharp-nec-displays	un552vs_firmware
8	Sharp-nec-displays	un552_firmware
9	Sharp-nec-displays	un552v_firmware
10	Sharp-nec-displays	ux552s_firmware
11	Sharp-nec-displays	ux552_firmware
12	Sharp-nec-displays	v864q_firmware
13	Sharp-nec-displays	c861q_firmware
14	Sharp-nec-displays	p754q_firmware
15	Sharp-nec-displays	v754q_firmware
16	Sharp-nec-displays	c751q_firmware
17	Sharp-nec-displays	v984q_firmware
18	Sharp-nec-displays	c981q_firmware
19	Sharp-nec-displays	p654q_firmware
20	Sharp-nec-displays	v654q_firmware
21	Sharp-nec-displays	c651q_firmware
22	Sharp-nec-displays	v554q_firmware
23	Sharp-nec-displays	p404_firmware
24	Sharp-nec-displays	p484_firmware
25	Sharp-nec-displays	p554_firmware
26	Sharp-nec-displays	v404_firmware
27	Sharp-nec-displays	v484_firmware
28	Sharp-nec-displays	v554_firmware
29	Sharp-nec-displays	v404-t_firmware
30	Sharp-nec-displays	v484-t_firmware
31	Sharp-nec-displays	v554-t_firmware
32	Sharp-nec-displays	c501_firmware
33	Sharp-nec-displays	c551_firmware
34	Sharp-nec-displays	c431_firmware
35	Sharp-nec-displays	un462a
36	Sharp-nec-displays	un462va
37	Sharp-nec-displays	un492s
38	Sharp-nec-displays	un492vs
39	Sharp-nec-displays	un552a
40	Sharp-nec-displays	un552s
41	Sharp-nec-displays	un552vs
42	Sharp-nec-displays	un552
43	Sharp-nec-displays	un552v
44	Sharp-nec-displays	ux552s
45	Sharp-nec-displays	ux552
46	Sharp-nec-displays	v864q
47	Sharp-nec-displays	c861q
48	Sharp-nec-displays	p754q
49	Sharp-nec-displays	v754q
50	Sharp-nec-displays	c751q
51	Sharp-nec-displays	v984q
52	Sharp-nec-displays	c981q
53	Sharp-nec-displays	p654q
54	Sharp-nec-displays	v654q
55	Sharp-nec-displays	c651q
56	Sharp-nec-displays	v554q
57	Sharp-nec-displays	p404
58	Sharp-nec-displays	p484
59	Sharp-nec-displays	p554
60	Sharp-nec-displays	v404
61	Sharp-nec-displays	v484
62	Sharp-nec-displays	v554
63	Sharp-nec-displays	v404-t
64	Sharp-nec-displays	v484-t
65	Sharp-nec-displays	v554-t
66	Sharp-nec-displays	c501
67	Sharp-nec-displays	c551
68	Sharp-nec-displays	c431

: Total Affected Vendor : 1 | Products : 68

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-2021-20698.

URL	Resource
https://www.sharp-nec-displays.com/global/support/info/A5-1_vulnerability.html
https://www.sharp-nec-displays.com/global/support/info/A5-1_vulnerability.html

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).

n0-traces/cve_monitor

Automatic monitor github cve using Github Actions

Python

Updated: 3 months, 1 week ago

2 stars 55 fork 55 watcher

Born at : April 7, 2021, 11:16 a.m. This repo has been linked 1008 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-2021-20698 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-20698 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		https://www.sharp-nec-displays.com/global/support/info/A5-1_vulnerability.html

CVE Modified by [email protected]

May. 14, 2024

Action	Type	Old Value	New Value

CVE Source Update by [email protected]

Nov. 07, 2023

Action	Type	Old Value	New Value
Changed	Source	JPCERT/CC	NEC Corporation

CVE Modified by [email protected]

Nov. 07, 2023

Action	Type	Old Value	New Value
Added	Reference		NEC Corporation https://www.sharp-nec-displays.com/global/support/info/A5-1_vulnerability.html [No types assigned]
Removed	Reference	JPCERT/CC https://www.sharp-nec-displays.com/global/support/info/A5-1_vulnerability.html

Modified Analysis by [email protected]

Oct. 06, 2022

CWE Remap by [email protected]

Jun. 28, 2022

Action	Type	Old Value	New Value
Changed	CWE	CWE-77	NVD-CWE-noinfo

CVE Modified by [email protected]

Oct. 12, 2021

Action	Type	Old Value	New Value
Changed	Description	Sharp NEC Displays (UN462A R1.300 and prior to it, UN462VA R1.300 and prior to it, UN492S R1.300 and prior to it, UN492VS R1.300 and prior to it, UN552A R1.300 and prior to it, UN552S R1.300 and prior to it, UN552VS R1.300 and prior to it, UN552 R1.300 and prior to it, UN552V R1.300 and prior to it, UX552S R1.300 and prior to it, UN552 R1.300 and prior to it, V864Q R2.000 and prior to it, C861Q R2.000 and prior to it, P754Q R2.000 and prior to it, V754Q R2.000 and prior to it, C751Q R2.000 and prior to it, V964Q R2.000 and prior to it, C961Q R2.000 and prior to it, P654Q R2.000 and prior to it, V654Q R2.000 and prior to it, C651Q R2.000 and prior to it, V554Q R2.000 and prior to it, P404 R3.300 and prior to it, P484 R3.300 and prior to it, P554 R3.300 and prior to it, V404 R3.300 and prior to it, V484 R3.300 and prior to it, V554 R3.300 and prior to it, V404-T R3.300 and prior to it, V484-T R3.300 and prior to it, V554-T R3.300 and prior to it, C501 R2.100 and prior to it, C551 R2.100 and prior to it, C431 R2.100 and prior to it) allows an attacker to obtain root privileges and execute remote code by sending unintended parameters that contain specific characters in http request.	Sharp NEC Displays (UN462A R1.300 and prior to it, UN462VA R1.300 and prior to it, UN492S R1.300 and prior to it, UN492VS R1.300 and prior to it, UN552A R1.300 and prior to it, UN552S R1.300 and prior to it, UN552VS R1.300 and prior to it, UN552 R1.300 and prior to it, UN552V R1.300 and prior to it, UX552S R1.300 and prior to it, UX552 R1.300 and prior to it, V864Q R2.000 and prior to it, C861Q R2.000 and prior to it, P754Q R2.000 and prior to it, V754Q R2.000 and prior to it, C751Q R2.000 and prior to it, V984Q R2.000 and prior to it, C981Q R2.000 and prior to it, P654Q R2.000 and prior to it, V654Q R2.000 and prior to it, C651Q R2.000 and prior to it, V554Q R2.000 and prior to it, P404 R3.200 and prior to it, P484 R3.200 and prior to it, P554 R3.200 and prior to it, V404 R3.200 and prior to it, V484 R3.200 and prior to it, V554 R3.200 and prior to it, V404-T R3.200 and prior to it, V484-T R3.200 and prior to it, V554-T R3.200 and prior to it, C501 R2.000 and prior to it, C551 R2.000 and prior to it, C431 R2.000 and prior to it) allows an attacker to obtain root privileges and execute remote code by sending unintended parameters that contain specific characters in http request.
Removed	Reference	http://jvn.jp/en/jp/JVN42866574/index.html [No Types Assigned]

CVE Modified by [email protected]

Sep. 17, 2021

Action	Type	Old Value	New Value
Added	Reference		http://jvn.jp/en/jp/JVN42866574/index.html [No Types Assigned]

CVE Modified by [email protected]

Jul. 19, 2021

Action	Type	Old Value	New Value
Changed	Description	Sharp NEC Displays (UN462A R1.300 and prior to it, UN462VA R1.300 and prior to it, UN492S R1.300 and prior to it, UN492VS R1.300 and prior to it, UN552A R1.300 and prior to it, UN552S R1.300 and prior to it, UN552VS R1.300 and prior to it, UN552 R1.300 and prior to it, UN552V R1.300 and prior to it, UX552S R1.300 and prior to it, UN552 R1.300 and prior to it, V864Q R2.000 and prior to it, C861Q R2.000 and prior to it, P754Q R2.000 and prior to it, V754Q R2.000 and prior to it, C751Q R2.000 and prior to it, V964Q R2.000 and prior to it, C961Q R2.000 and prior to it, P654Q R2.000 and prior to it, V654Q R2.000 and prior to it, C651Q R2.000 and prior to it, V554Q R2.000 and prior to it) allows an attacker to obtain root privileges and execute remote code by sending unintended parameters that contain specific characters in http request.	Sharp NEC Displays (UN462A R1.300 and prior to it, UN462VA R1.300 and prior to it, UN492S R1.300 and prior to it, UN492VS R1.300 and prior to it, UN552A R1.300 and prior to it, UN552S R1.300 and prior to it, UN552VS R1.300 and prior to it, UN552 R1.300 and prior to it, UN552V R1.300 and prior to it, UX552S R1.300 and prior to it, UN552 R1.300 and prior to it, V864Q R2.000 and prior to it, C861Q R2.000 and prior to it, P754Q R2.000 and prior to it, V754Q R2.000 and prior to it, C751Q R2.000 and prior to it, V964Q R2.000 and prior to it, C961Q R2.000 and prior to it, P654Q R2.000 and prior to it, V654Q R2.000 and prior to it, C651Q R2.000 and prior to it, V554Q R2.000 and prior to it, P404 R3.300 and prior to it, P484 R3.300 and prior to it, P554 R3.300 and prior to it, V404 R3.300 and prior to it, V484 R3.300 and prior to it, V554 R3.300 and prior to it, V404-T R3.300 and prior to it, V484-T R3.300 and prior to it, V554-T R3.300 and prior to it, C501 R2.100 and prior to it, C551 R2.100 and prior to it, C431 R2.100 and prior to it) allows an attacker to obtain root privileges and execute remote code by sending unintended parameters that contain specific characters in http request.

Initial Analysis by [email protected]

Jun. 16, 2021

Action	Type	Old Value	New Value
Added	CVSS V2		NIST (AV:N/AC:L/Au:N/C:C/I:C/A:C)
Added	CVSS V3.1		NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Changed	Reference Type	https://www.sharp-nec-displays.com/global/support/info/A5-1_vulnerability.html No Types Assigned	https://www.sharp-nec-displays.com/global/support/info/A5-1_vulnerability.html Vendor Advisory
Added	CWE		NIST CWE-77
Added	CPE Configuration		AND OR cpe:2.3:o:sharp-nec-display:un462a_firmware::::::::* versions up to (including) r1.300 OR cpe:2.3:h:sharp-nec-display:un462a:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:sharp-nec-display:un462va_firmware::::::::* versions up to (including) r1.300 OR cpe:2.3:h:sharp-nec-display:un462va:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:sharp-nec-display:un492s_firmware::::::::* versions up to (including) r1.300 OR cpe:2.3:h:sharp-nec-display:un492s:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:sharp-nec-display:un492vs_firmware::::::::* versions up to (including) r1.300 OR cpe:2.3:h:sharp-nec-display:un492vs:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:sharp-nec-display:un552a_firmware::::::::* versions up to (including) r1.300 OR cpe:2.3:h:sharp-nec-display:un552a:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:sharp-nec-display:un552s_firmware::::::::* versions up to (including) r1.300 OR cpe:2.3:h:sharp-nec-display:un552s:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:sharp-nec-display:un552vs_firmware::::::::* versions up to (including) r1.300 OR cpe:2.3:h:sharp-nec-display:un552vs:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:sharp-nec-display:un552_firmware::::::::* versions up to (including) r1.300 OR cpe:2.3:h:sharp-nec-display:un552:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:sharp-nec-display:un552v_firmware::::::::* versions up to (including) r1.300 OR cpe:2.3:h:sharp-nec-display:un552v:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:sharp-nec-display:ux552s_firmware::::::::* versions up to (including) r1.300 OR cpe:2.3:h:sharp-nec-display:ux552s:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:sharp-nec-display:un552_firmware::::::::* versions up to (including) r1.300 OR cpe:2.3:h:sharp-nec-display:un552:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:sharp-nec-display:v864q_firmware::::::::* versions up to (including) r2.000 OR cpe:2.3:h:sharp-nec-display:v864q:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:sharp-nec-display:c861q_firmware::::::::* versions up to (including) r2.000 OR cpe:2.3:h:sharp-nec-display:c861q:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:sharp-nec-display:p754q_firmware::::::::* versions up to (including) r2.000 OR cpe:2.3:h:sharp-nec-display:p754q:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:sharp-nec-display:v754q_firmware::::::::* versions up to (including) r2.000 OR cpe:2.3:h:sharp-nec-display:v754q:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:sharp-nec-display:c751q_firmware::::::::* versions up to (including) r2.000 OR cpe:2.3:h:sharp-nec-display:c751q:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:sharp-nec-display:v964q_firmware::::::::* versions up to (including) r2.000 OR cpe:2.3:h:sharp-nec-display:v964q:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:sharp-nec-display:c981q_firmware::::::::* versions up to (including) r2.000 OR cpe:2.3:h:sharp-nec-display:c981q:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:sharp-nec-display:p654q_firmware::::::::* versions up to (including) r2.000 OR cpe:2.3:h:sharp-nec-display:p654q:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:sharp-nec-display:v654q_firmware::::::::* versions up to (including) r2.000 OR cpe:2.3:h:sharp-nec-display:v654q:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:sharp-nec-display:c651q_firmware::::::::* versions up to (including) r2.000 OR cpe:2.3:h:sharp-nec-display:c651q:-:::::::*
Added	CPE Configuration		AND OR cpe:2.3:o:sharp-nec-display:v554q_firmware::::::::* versions up to (including) r2.000 OR cpe:2.3:h:sharp-nec-display:v554q:-:::::::*

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-2021-20698 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-2021-20698 weaknesses.

CVE-2021-20698

Sharp NEC Displays Remote Code Execution Vulnerability

Description

INFO

June 7, 2021, 2:15 p.m.

Nov. 21, 2024, 5:47 a.m.

[email protected]

Yes !

5.9

3.9

Public PoC/Exploit Available at Github

Affected Products

References to Advisories, Solutions, and Tools

n0-traces/cve_monitor

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

CVE Modified by [email protected]

CVE Source Update by [email protected]

CVE Modified by [email protected]

Modified Analysis by [email protected]

CWE Remap by [email protected]

CVE Modified by [email protected]

CVE Modified by [email protected]

CVE Modified by [email protected]

Initial Analysis by [email protected]

CWE - Common Weakness Enumeration

Common Attack Pattern Enumeration and Classification (CAPEC)

Exploit Prediction

0.44 }} 0.07%

0.60452

CVSS31 - Vulnerability Scoring System

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