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 :
Nov. 21, 2024, 5:45 a.m.
Source :
[email protected]
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.
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 |
| 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
SonicWall SMA-100 Unauth RCE Exploit (CVE-2021-20038)
exploit rce cve-2021-20038
Python
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.
-
BleepingComputer
SonicWall urges admins to patch critical RCE flaw in SMA 100 devices
SonicWall urges customers to patch SMA 100 series appliances against a critical authenticated arbitrary file upload vulnerability that can let attackers gain remote code execution. The security flaw ( ... Read more
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Ars Technica
Google finds custom backdoor being installed on SonicWall network devices
Researchers from the Google Threat Intelligence Group said that hackers are compromising SonicWall Secure Mobile Access (SMA) appliances, which sit at the edge of enterprise networks and manage and se ... Read more
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Help Net Security
SonicWall SMA devices persistently infected with stealthy OVERSTEP backdoor and rootkit
Unknown intruders are targeting fully patched end-of-life SonicWall Secure Mobile Access (SMA) 100 series appliances and deploying a novel, persistent backdoor / rootkit, analysts with Google’s Threat ... Read more
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BleepingComputer
SonicWall SMA devices hacked with OVERSTEP rootkit tied to ransomware
A threat actor has been deploying a previously unseen malware called OVERSTEP that modifies the boot process of fully-patched but no longer supported SonicWall Secure Mobile Access appliances. The bac ... Read more
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The Register
Crims hijacking fully patched SonicWall VPNs to deploy stealthy backdoor and rootkit
Unknown miscreants are exploiting fully patched, end-of-life SonicWall VPNs to deploy a previously unknown backdoor and rootkit, likely for data theft and extortion, according to Google's Threat Intel ... Read more
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The Hacker News
UNC6148 Backdoors Fully-Patched SonicWall SMA 100 Series Devices with OVERSTEP Rootkit
A threat activity cluster has been observed targeting fully-patched end-of-life SonicWall Secure Mobile Access (SMA) 100 series appliances as part of a campaign designed to drop a backdoor called OVER ... Read more
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Google Cloud
Ongoing SonicWall Secure Mobile Access (SMA) Exploitation Campaign using the OVERSTEP Backdoor
Written by: Josh Goddard, Zander Work, Dimiter Andonov Introduction Google Threat Intelligence Group (GTIG) has identified an ongoing campaign by a suspected financially-motivated threat actor we trac ... Read more
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 af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference http://packetstormsecurity.com/files/165563/SonicWall-SMA-100-Series-Authenticated-Command-Injection.html Added Reference https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0026 -
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:-:*:*:*:*:*:*:*
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)
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-2021-20039
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
53.66 }} -3.10%
score
0.97824
percentile