CVE-2021-20022 SonicWall Email Security Unrestricted Upload of File
A post-authenticated attacker can upload arbitrary files to the SonicWall Email Security server, potentially leading to remote code execution.
- Exploited in the wild
- Since 3 Nov 2021
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-20022?
CVE-2021-20022 is a high-severity vulnerability in SonicWall Email Security, published on 9 Apr 2021. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
SonicWall Email Security version 10.0.9.x contains a vulnerability that allows a post-authenticated attacker to upload an arbitrary file to the remote host.
Weakness: CWE-434
Which versions are affected by CVE-2021-20022?
It affects 11 products.
Products include Sonicwall Email Security, Sonicwall Email Security Appliance 3300 Firmware, Sonicwall Email Security Appliance 4300 Firmware, Sonicwall Email Security Appliance 5000 Firmware, Sonicwall Email Security Appliance 5050 Firmware, Sonicwall Email Security Appliance 7000 Firmware and 5 more.
How do I fix CVE-2021-20022?
No fix has been published for CVE-2021-20022 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 17 Nov 2021.
Is CVE-2021-20022 being exploited?
Yes. Attackers have exploited CVE-2021-20022 in the wild since at least 3 Nov 2021, including in ransomware campaigns.
Other vulnerabilities in SonicWall Email Security
Sources
Also known as GHSA-5f56-r8q7-xv26.