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High severityNVD Advisory· Published Oct 23, 2020· Updated Aug 4, 2024

CVE-2020-27216

CVE-2020-27216

Description

In Eclipse Jetty versions 1.0 thru 9.4.32.v20200930, 10.0.0.alpha1 thru 10.0.0.beta2, and 11.0.0.alpha1 thru 11.0.0.beta2O, on Unix like systems, the system's temporary directory is shared between all users on that system. A collocated user can observe the process of creating a temporary sub directory in the shared temporary directory and race to complete the creation of the temporary subdirectory. If the attacker wins the race then they will have read and write permission to the subdirectory used to unpack web applications, including their WEB-INF/lib jar files and JSP files. If any code is ever executed out of this temporary directory, this can lead to a local privilege escalation vulnerability.

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Affected packages

Versions sourced from the GitHub Security Advisory.

PackageAffected versionsPatched versions
org.eclipse.jetty:jetty-webappMaven
< 9.4.33.v202010209.4.33.v20201020
org.mortbay.jetty:jetty-webappMaven
< 9.4.339.4.33
org.eclipse.jetty:jetty-webappMaven
>= 10.0.0.beta1, < 10.0.0.beta310.0.0.beta3
org.mortbay.jetty:jetty-webappMaven
>= 10.0.0.beta1, < 10.0.0.beta310.0.0.beta3
org.eclipse.jetty:jetty-webappMaven
>= 11.0.0.beta1, < 11.0.0.beta311.0.0.beta3
org.mortbay.jetty:jetty-webappMaven
>= 11.0.0.beta1, < 11.0.0.beta311.0.0.beta3

Affected products

4

Patches

Vulnerability mechanics

References

278

News mentions

0

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