6.1
MEDIUM
CVE-2021-46387
ZyXEL ZyWALL 2 Plus Internet Security Appliance - Cross Site Scripting (XSS) Vulnerability
Description

ZyXEL ZyWALL 2 Plus Internet Security Appliance is affected by Cross Site Scripting (XSS). Insecure URI handling leads to bypass security restriction to achieve Cross Site Scripting, which allows an attacker able to execute arbitrary JavaScript codes to perform multiple attacks such as clipboard hijacking and session hijacking.

INFO

Published Date :

March 1, 2022, 3:15 p.m.

Last Modified :

March 9, 2022, 1:17 p.m.

Remotely Exploitable :

Yes !

Impact Score :

2.7

Exploitability Score :

2.8
Public PoC/Exploit Available at Github

CVE-2021-46387 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-2021-46387 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 Zyxel zywall_2_plus_internet_security_appliance_firmware
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-2021-46387.

URL Resource
http://packetstormsecurity.com/files/166189/Zyxel-ZyWALL-2-Plus-Cross-Site-Scripting.html Exploit Third Party Advisory VDB Entry
https://drive.google.com/drive/folders/1_XfWBLqxT2Mqt7uB663Sjlc62pE8-rcN?usp=sharing Exploit Third Party Advisory
https://www.zyxel.com/uk/en/products_services/zywall_2_plus.shtml Broken Link Vendor Advisory
https://www.zyxel.com/us/en/support/security_advisories.shtml 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).

essential templates for kenzer [DEPRECATED]

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Python Shell Ruby

Updated: 3 months, 1 week ago
106 stars 32 fork 32 watcher
Born at : Sept. 18, 2020, 9:03 p.m. This repo has been linked 1653 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-2021-46387 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-46387 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 [email protected]

    May. 14, 2024

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

    Mar. 09, 2022

    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 http://packetstormsecurity.com/files/166189/Zyxel-ZyWALL-2-Plus-Cross-Site-Scripting.html No Types Assigned http://packetstormsecurity.com/files/166189/Zyxel-ZyWALL-2-Plus-Cross-Site-Scripting.html Exploit, Third Party Advisory, VDB Entry
    Changed Reference Type https://drive.google.com/drive/folders/1_XfWBLqxT2Mqt7uB663Sjlc62pE8-rcN?usp=sharing No Types Assigned https://drive.google.com/drive/folders/1_XfWBLqxT2Mqt7uB663Sjlc62pE8-rcN?usp=sharing Exploit, Third Party Advisory
    Changed Reference Type https://www.zyxel.com/uk/en/products_services/zywall_2_plus.shtml No Types Assigned https://www.zyxel.com/uk/en/products_services/zywall_2_plus.shtml Broken Link, Vendor Advisory
    Changed Reference Type https://www.zyxel.com/us/en/support/security_advisories.shtml No Types Assigned https://www.zyxel.com/us/en/support/security_advisories.shtml Vendor Advisory
    Added CWE NIST CWE-79
    Added CPE Configuration AND OR *cpe:2.3:o:zyxel:zywall_2_plus_internet_security_appliance_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:zyxel:zywall_2_plus_internet_security_appliance:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Mar. 02, 2022

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/166189/Zyxel-ZyWALL-2-Plus-Cross-Site-Scripting.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-2021-46387 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-2021-46387 weaknesses.

Exploit Prediction

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

14.35 }} 2.13%

score

0.95813

percentile

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