CVE-2021-20039

Public Exploit

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.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 56.76% Top 5%
Vendor Advisory sonicwall.com
Affected: SonicWall SonicWall SMA100
Published at:
Updated at:

References

Link Tags
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 vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-20039?
CVE-2021-20039 has been scored as a high severity vulnerability.
How to fix CVE-2021-20039?
To fix CVE-2021-20039, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-20039 being actively exploited in the wild?
It is possible that CVE-2021-20039 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~57% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-20039?
CVE-2021-20039 affects SonicWall SonicWall SMA100.
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