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CVE-2021-21307— Remote Code Exploit in Lucee Admin

Quick assessment

Affected
lucee Lucee
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Lucee Server中存在授权问题漏洞，该漏洞源于网络系统或产品中缺少身份验证措施或身份验证强度不足。

CVSS 8.6 · High EPSS 89.19% · P100

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-21307

Vulnerability Information
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Vulnerability Title
Remote Code Exploit in Lucee Admin
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Lucee Server 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Lucee Server中存在授权问题漏洞，该漏洞源于网络系统或产品中缺少身份验证措施或身份验证强度不足。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Shenlong Deep Dive — AI Deep Analysis

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Affected Products

Vendor Product Affected Versions CPE Subscribe
lucee Lucee >= 5.3.5.0, < 5.3.5.96 -

II. Public POCs for CVE-2021-21307

# POC Description Source Link Shenlong Link
1 Lucee Admin before versions 5.3.7.47, 5.3.6.68 or 5.3.5.96 contains an unauthenticated remote code execution vulnerability. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-21307.yaml POC Details
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III. Intelligence Information for CVE-2021-21307

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Patches & Fixes for CVE-2021-21307 (1)

Vendor Advisories for CVE-2021-21307 (1)

Exploits & Public PoCs for CVE-2021-21307 (1)

Security Blog Posts for CVE-2021-21307 (1)

Other References for CVE-2021-21307 (2)

IV. Related Vulnerabilities

Same product: Lucee
Same vendor: lucee
Same weakness: CWE-862

V. Comments for CVE-2021-21307

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