CVE-2021-20031

Public Exploit

Description

A Host Header Redirection vulnerability in SonicOS potentially allows a remote attacker to redirect firewall management users to arbitrary web domains.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 41.30% Top 5%
Vendor Advisory sonicwall.com
Affected: SonicWall SonicOS
Published at:
Updated at:

References

Link Tags
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0019 vendor advisory
http://packetstormsecurity.com/files/164502/Sonicwall-SonicOS-7.0-Host-Header-Injection.html exploit vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-20031?
CVE-2021-20031 has been scored as a medium severity vulnerability.
How to fix CVE-2021-20031?
To fix CVE-2021-20031, 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-2021-20031 being actively exploited in the wild?
It is possible that CVE-2021-20031 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~41% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-20031?
CVE-2021-20031 affects SonicWall SonicOS.
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