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Access Restriction Bypass Affecting org.eclipse.jetty:jetty-webapp package, versions [9.4.37,9.4.43) [10.0.1,10.0.6) [11.0.1,11.0.6)

0.0
medium

Snyk CVSS

    Attack Complexity Low

    Threat Intelligence

    Exploit Maturity Mature
    EPSS 47.56% (98th percentile)
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NVD
5.3 medium
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SUSE
6.5 medium
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Red Hat
5.3 medium

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  • Snyk ID SNYK-JAVA-ORGECLIPSEJETTY-1319666
  • published 16 Jul 2021
  • disclosed 16 Jul 2021
  • credit cangqingzhe, CloverSecLabs
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Introduced: 16 Jul 2021

CVE-2021-34429 Open this link in a new tab
CWE-200 Open this link in a new tab

How to fix?

Upgrade org.eclipse.jetty:jetty-webapp to version 9.4.43, 10.0.6, 11.0.6 or higher.

Overview

org.eclipse.jetty:jetty-webapp is a maven plugin for Jetty web application support.

Affected versions of this package are vulnerable to Access Restriction Bypass. URIs can be crafted using some encoded characters to access the content of the WEB-INF directory and/or bypass some security constraints. For example, a request to /%u002e/WEB-INF/web.xml can retrieve the web.xml file. This can reveal sensitive information regarding the implementation of a web application. Similarly, an encoded null character can prevent correct normalization so that /.%00/WEB-INF/web.xml can also retrieve the web.xml file.