CVE-2021-21307 Information

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://github.com/httpvoid/writeups/blob/main/Apple-RCE.md http://ciacfug.org/blog/updating-lucee-as-part-of-a-vulnerability-alert-response https://portswigger.net/daily-swig/security-researchers-earn-50k-after-exposing-critical-flaw-in-apple-travel-portal https://dev.lucee.org/t/lucee-vulnerability-alert-november-2020/7643 https://github.com/lucee/Lucee/commit/6208ab7c44c61d26c79e0b0af10382899f57e1ca https://github.com/lucee/Lucee/security/advisories/GHSA-2xvv-723c-8p7r http://packetstormsecurity.com/files/163864/Lucee-Administrator-imgProcess.cfm-Arbitrary-File-Write.html

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8