Remote Code Exploit in Lucee Admin
CVE-2021-21307
Key Information:
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What is CVE-2021-21307?
Lucee Server is a dynamic, Java based (JSR-223), tag and scripting language used for rapid web application development. In Lucee Admin before versions 5.3.7.47, 5.3.6.68 or 5.3.5.96 there is an unauthenticated remote code exploit. This is fixed in versions 5.3.7.47, 5.3.6.68 or 5.3.5.96. As a workaround, one can block access to the Lucee Administrator.
Affected Version(s)
Lucee >= 5.3.5.0, < 5.3.5.96 < 5.3.5.0, 5.3.5.96
Lucee >= 5.3.6.0, < 5.3.6.68 < 5.3.6.0, 5.3.6.68
Lucee >= 5.3.7.0, < 5.3.7.47 < 5.3.7.0, 5.3.7.47
Exploit Proof of Concept (PoC)
PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.
References
EPSS Score
92% chance of being exploited in the next 30 days.
CVSS V3.1
Timeline
- ๐ก
Public PoC available
- ๐พ
Exploit known to exist
Vulnerability published
Vulnerability Reserved

