CVE-2021-21307 is a vulnerability in Lucee Server
Published on February 11, 2021
Remote Code Exploit in Lucee Admin
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.
Vulnerability Analysis
CVE-2021-21307 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, a high impact on integrity, and no impact on availability.
Weakness Type
What is an AuthZ Vulnerability?
The software does not perform an authorization check when an actor attempts to access a resource or perform an action.
CVE-2021-21307 has been classified to as an AuthZ vulnerability or weakness.
Products Associated with CVE-2021-21307
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Affected Versions
Lucee:- Version >= 5.3.5.0, < 5.3.5.96 is affected.
- Version >= 5.3.6.0, < 5.3.6.68 is affected.
- Version >= 5.3.7.0, < 5.3.7.47 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.