8.8
HIGH
CVE-2021-20039
Juniper SMA Arbitrary Command Injection Vulnerability
Description

Improper neutralization of special elements in the SMA100 management interface '/cgi-bin/viewcert' POST http method allows a remote authenticated attacker to inject arbitrary commands as a 'nobody' user. This vulnerability affected SMA 200, 210, 400, 410 and 500v appliances.

INFO

Published Date :

Dec. 8, 2021, 10:15 a.m.

Last Modified :

April 1, 2022, 3:27 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

2.8
Public PoC/Exploit Available at Github

CVE-2021-20039 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-2021-20039 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 Sonicwall sma_210_firmware
2 Sonicwall sma_410_firmware
3 Sonicwall sma_500v_firmware
4 Sonicwall sma_200_firmware
5 Sonicwall sma_400_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-2021-20039.

URL Resource
http://packetstormsecurity.com/files/165563/SonicWall-SMA-100-Series-Authenticated-Command-Injection.html Exploit Third Party Advisory VDB Entry
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0026 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).

Collect some iot-related security articles, including vulnerability analysis, security conferences and papers, etc.

iot-security

Updated: 2 months ago
211 stars 27 fork 27 watcher
Born at : Dec. 6, 2022, 1:11 p.m. This repo has been linked 46 different CVEs too.

SonicWall SMA-100 Unauth RCE Exploit (CVE-2021-20038)

exploit rce cve-2021-20038

Python

Updated: 2 months, 4 weeks ago
91 stars 23 fork 23 watcher
Born at : Jan. 11, 2022, 2:25 a.m. This repo has been linked 2 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-2021-20039 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-20039 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
  • Modified Analysis by [email protected]

    Apr. 01, 2022

    Action Type Old Value New Value
    Changed Reference Type http://packetstormsecurity.com/files/165563/SonicWall-SMA-100-Series-Authenticated-Command-Injection.html No Types Assigned http://packetstormsecurity.com/files/165563/SonicWall-SMA-100-Series-Authenticated-Command-Injection.html Exploit, Third Party Advisory, VDB Entry
  • CVE Modified by [email protected]

    Jan. 13, 2022

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/165563/SonicWall-SMA-100-Series-Authenticated-Command-Injection.html [No Types Assigned]
  • Initial Analysis by [email protected]

    Dec. 10, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:C/I:C/A:C)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0026 No Types Assigned https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0026 Vendor Advisory
    Added CWE NIST CWE-78
    Added CPE Configuration AND OR *cpe:2.3:o:sonicwall:sma_200_firmware:9.0.0.11-31sv:*:*:*:*:*:*:* *cpe:2.3:o:sonicwall:sma_200_firmware:10.2.0.8-37sv:*:*:*:*:*:*:* *cpe:2.3:o:sonicwall:sma_200_firmware:10.2.1.1-19sv:*:*:*:*:*:*:* OR cpe:2.3:h:sonicwall:sma_200:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:sonicwall:sma_210_firmware:9.0.0.11-31sv:*:*:*:*:*:*:* *cpe:2.3:o:sonicwall:sma_210_firmware:10.2.0.8-37sv:*:*:*:*:*:*:* *cpe:2.3:o:sonicwall:sma_210_firmware:10.2.1.1-19sv:*:*:*:*:*:*:* OR cpe:2.3:h:sonicwall:sma_210:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:sonicwall:sma_410_firmware:9.0.0.11-31sv:*:*:*:*:*:*:* *cpe:2.3:o:sonicwall:sma_410_firmware:10.2.0.8-37sv:*:*:*:*:*:*:* *cpe:2.3:o:sonicwall:sma_410_firmware:10.2.1.1-19sv:*:*:*:*:*:*:* OR cpe:2.3:h:sonicwall:sma_410:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:sonicwall:sma_400_firmware:9.0.0.11-31sv:*:*:*:*:*:*:* *cpe:2.3:o:sonicwall:sma_400_firmware:10.2.0.8-37sv:*:*:*:*:*:*:* *cpe:2.3:o:sonicwall:sma_400_firmware:10.2.1.1-19sv:*:*:*:*:*:*:* OR cpe:2.3:h:sonicwall:sma_400:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:sonicwall:sma_500v_firmware:9.0.0.11-31sv:*:*:*:*:*:*:* *cpe:2.3:o:sonicwall:sma_500v_firmware:10.2.0.8-37sv:*:*:*:*:*:*:* *cpe:2.3:o:sonicwall:sma_500v_firmware:10.2.1.1-19sv:*:*:*:*:*:*:* OR cpe:2.3:h:sonicwall:sma_500v:-:*:*:*:*:*:*:*
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-2021-20039 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Exploit Prediction

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

68.95 }} -1.76%

score

0.98070

percentile

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