CVE-2021-21307
Last modified
CVE-2021-21307 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. EPSS estimates a 89.19% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Lucee | Lucee Server | >= 5.3.5.00, < 5.3.5.96 |
| Lucee | Lucee Server | >= 5.3.6.00, < 5.3.6.68 |
| Lucee | Lucee Server | >= 5.3.7.00, < 5.3.7.47 |
References
- http://ciacfug.org/blog/updating-lucee-as-part-of-a-vulnerability-alert-responsePatch, Third Party Advisory
- http://packetstormsecurity.com/files/163864/Lucee-Administrator-imgProcess.cfm-Arbitrary-File-Write.htmlExploit, Third Party Advisory, VDB Entry
- https://github.com/httpvoid/writeups/blob/main/Apple-RCE.mdExploit, Third Party Advisory
- https://github.com/lucee/Lucee/commit/6208ab7c44c61d26c79e0b0af10382899f57e1caPatch, Third Party Advisory
- https://portswigger.net/daily-swig/security-researchers-earn-50k-after-exposing-critical-flaw-in-apple-travel-portalPress/Media Coverage, Third Party Advisory
- http://ciacfug.org/blog/updating-lucee-as-part-of-a-vulnerability-alert-responsePatch, Third Party Advisory
- http://packetstormsecurity.com/files/163864/Lucee-Administrator-imgProcess.cfm-Arbitrary-File-Write.htmlExploit, Third Party Advisory, VDB Entry
- https://github.com/httpvoid/writeups/blob/main/Apple-RCE.mdExploit, Third Party Advisory
- https://github.com/lucee/Lucee/commit/6208ab7c44c61d26c79e0b0af10382899f57e1caPatch, Third Party Advisory
- https://portswigger.net/daily-swig/security-researchers-earn-50k-after-exposing-critical-flaw-in-apple-travel-portalPress/Media Coverage, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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