Vulnerability CVE-2020-7799
Published: 2020-01-28

Description:
An issue was discovered in FusionAuth before 1.11.0. An authenticated user, allowed to edit e-mail templates (Home -> Settings -> Email Templates) or themes (Home -> Settings -> Themes), can execute commands on the underlying operating system by abusing freemarker.template.utility.Execute in the Apache FreeMarker engine that processes custom templates.

See advisories in our WLB2 database:
Topic
Author
Date
High
FusionAuth 1.10 Remote Command Execution
Gianluca Baldi
28.01.2020

Type:

CWE-74

CVSS2 => (AV:N/AC:L/Au:S/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
9/10
10/10
8/10
Exploit range
Attack complexity
Authentication
Remote
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Fusionauth -> Fusionauth 

 References:
http://packetstormsecurity.com/files/156102/FusionAuth-1.10-Remote-Command-Execution.html
https://fusionauth.io/docs/v1/tech/release-notes
https://lab.mediaservice.net/advisory/2020-03-fusionauth.txt
https://seclists.org/bugtraq/2020/Jan/39
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