6.1
MEDIUM
CVE-2021-20680
NEC Aterm Cross-Site Scripting Vulnerability
Description

Cross-site scripting vulnerability in NEC Aterm devices (Aterm WG1900HP2 firmware Ver.1.3.1 and earlier, Aterm WG1900HP firmware Ver.2.5.1 and earlier, Aterm WG1800HP4 firmware Ver.1.3.1 and earlier, Aterm WG1800HP3 firmware Ver.1.5.1 and earlier, Aterm WG1200HS2 firmware Ver.2.5.0 and earlier, Aterm WG1200HP3 firmware Ver.1.3.1 and earlier, Aterm WG1200HP2 firmware Ver.2.5.0 and earlier, Aterm W1200EX firmware Ver.1.3.1 and earlier, Aterm W1200EX-MS firmware Ver.1.3.1 and earlier, Aterm WG1200HS firmware all versions Aterm WG1200HP firmware all versions Aterm WF800HP firmware all versions Aterm WF300HP2 firmware all versions Aterm WR8165N firmware all versions Aterm W500P firmware all versions, and Aterm W300P firmware all versions) allows remote attackers to inject arbitrary script or HTML via unspecified vectors.

INFO

Published Date :

April 26, 2021, 1:15 a.m.

Last Modified :

Nov. 21, 2024, 5:46 a.m.

Remotely Exploitable :

Yes !

Impact Score :

2.7

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2021-20680 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 Nec aterm_wg1900hp2_firmware
2 Nec aterm_wg1900hp_firmware
3 Nec aterm_wg1800hp4_firmware
4 Nec aterm_wg1800hp3_firmware
5 Nec aterm_wg1200hs3_firmware
6 Nec aterm_wg1200hs2_firmware
7 Nec aterm_wg1200hp3_firmware
8 Nec aterm_wg1200hp2_firmware
9 Nec aterm_w1200ex_firmware
10 Nec aterm_w1200ex-ms_firmware
11 Nec aterm_wg1200hs_firmware
12 Nec aterm_wg1200hp_firmware
13 Nec aterm_wf800hp_firmware
14 Nec aterm_wf300hp2_firmware
15 Nec aterm_wr8165n_firmware
16 Nec aterm_w500p_firmware
17 Nec aterm_w300p_firmware
18 Nec aterm_w300p
19 Nec aterm_wg1900hp2
20 Nec aterm_wg1900hp
21 Nec aterm_wg1800hp4
22 Nec aterm_wg1800hp3
23 Nec aterm_wg1200hs3
24 Nec aterm_wg1200hs2
25 Nec aterm_wg1200hp3
26 Nec aterm_wg1200hp2
27 Nec aterm_w1200ex
28 Nec aterm_w1200ex-ms
29 Nec aterm_wg1200hs
30 Nec aterm_wg1200hp
31 Nec aterm_wf800hp
32 Nec aterm_wf300hp2
33 Nec aterm_wr8165n
34 Nec aterm_w500p
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-2021-20680.

URL Resource
https://jpn.nec.com/security-info/secinfo/nv21-008.html Vendor Advisory
https://jvn.jp/en/jp/JVN67456944/index.html Third Party Advisory
https://jpn.nec.com/security-info/secinfo/nv21-008.html Vendor Advisory
https://jvn.jp/en/jp/JVN67456944/index.html Third Party 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).

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

The following list is the news that have been mention CVE-2021-20680 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-20680 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://jpn.nec.com/security-info/secinfo/nv21-008.html
    Added Reference https://jvn.jp/en/jp/JVN67456944/index.html
  • CVE Modified by [email protected]

    May. 14, 2024

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

    May. 05, 2021

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:P/A:N)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    Changed Reference Type https://jpn.nec.com/security-info/secinfo/nv21-008.html No Types Assigned https://jpn.nec.com/security-info/secinfo/nv21-008.html Vendor Advisory
    Changed Reference Type https://jvn.jp/en/jp/JVN67456944/index.html No Types Assigned https://jvn.jp/en/jp/JVN67456944/index.html Third Party Advisory
    Added CWE NIST CWE-79
    Added CPE Configuration AND OR *cpe:2.3:o:nec:aterm_wg1900hp2_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.3.1 OR cpe:2.3:h:nec:aterm_wg1900hp2:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:nec:aterm_wg1900hp_firmware:*:*:*:*:*:*:*:* versions up to (including) 2.5.1 OR cpe:2.3:h:nec:aterm_wg1900hp:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:nec:aterm_wg1800hp4_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.3.1 OR cpe:2.3:h:nec:aterm_wg1800hp4:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:nec:aterm_wg1800hp3_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.5.1 OR cpe:2.3:h:nec:aterm_wg1800hp3:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:nec:aterm_wg1200hs3_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.1.2 OR cpe:2.3:h:nec:aterm_wg1200hs3:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:nec:aterm_wg1200hs2_firmware:*:*:*:*:*:*:*:* versions up to (including) 2.5.0 OR cpe:2.3:h:nec:aterm_wg1200hs2:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:nec:aterm_wg1200hp3_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.3.1 OR cpe:2.3:h:nec:aterm_wg1200hp3:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:nec:aterm_wg1200hp2_firmware:*:*:*:*:*:*:*:* versions up to (including) 2.5.0 OR cpe:2.3:h:nec:aterm_wg1200hp2:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:nec:aterm_w1200ex_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.3.1 OR cpe:2.3:h:nec:aterm_w1200ex:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:nec:aterm_w1200ex-ms_firmware:*:*:*:*:*:*:*:* versions up to (including) 1.3.1 OR cpe:2.3:h:nec:aterm_w1200ex-ms:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:nec:aterm_wg1200hs_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:nec:aterm_wg1200hs:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:nec:aterm_wg1200hp_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:nec:aterm_wg1200hp:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:nec:aterm_wf800hp_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:nec:aterm_wf800hp:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:nec:aterm_wf300hp2_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:nec:aterm_wf300hp2:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:nec:aterm_wr8165n_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:nec:aterm_wr8165n:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:nec:aterm_w500p_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:nec:aterm_w500p:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:nec:aterm_w300p_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:nec:aterm_w300p:-:*:*:*:*:*:*:*
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-2021-20680 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-2021-20680 weaknesses.

Exploit Prediction

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

0.09 }} -0.03%

score

0.40367

percentile

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