Attacker Value
Very High
CVE-2021-21307
CVE-2021-21307
(Last updated October 07, 2023) ▾
MITRE ATT&CK
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Metasploit Module
Description
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.
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Technical Analysis
This is another of those products I hadn’t ever heard of before we started hearing about compromises. There’s a Metasploit module available here, hence the relatively high exploitability rating: https://github.com/rapid7/metasploit-framework/pull/15525
Mitigation is to lock down admin access, sensibly: https://dev.lucee.org/t/lucee-vulnerability-alert-november-2020-cve-2021-21307/7643
CVSS V3 Severity and Metrics
Data provided by the National Vulnerability Database (NVD)
Base Score:
9.8 Critical
Impact Score:
5.9
Exploitability Score:
3.9
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High
General Information
Vendors
- lucee
Products
- lucee server
Metasploit Modules
Exploited in the Wild
References
Miscellaneous
