CVE-2021-21234

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Summary

CVECVE-2021-21234
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-01-05 18:15:00 UTC
Updated2021-01-11 14:41:00 UTC
Descriptionspring-boot-actuator-logview in a library that adds a simple logfile viewer as spring boot actuator endpoint. It is maven package "eu.hinsch:spring-boot-actuator-logview". In spring-boot-actuator-logview before version 0.2.13 there is a directory traversal vulnerability. The nature of this library is to expose a log file directory via admin (spring boot actuator) HTTP endpoints. Both the filename to view and a base folder (relative to the logging folder root) can be specified via request parameters. While the filename parameter was checked to prevent directory traversal exploits (so that `filename=../somefile` would not work), the base folder parameter was not sufficiently checked, so that `filename=somefile&base=../` could access a file outside the logging base directory). The vulnerability has been patched in release 0.2.13. Any users of 0.2.12 should be able to update without any issues as there are no other changes in that release. There is no workaround to fix the vulnerability other than updating or removing the dependency. However, removing read access of the user the application is run with to any directory not required for running the application can limit the impact. Additionally, access to the logview endpoint can be limited by deploying the application behind a reverse proxy.

Risk And Classification

Problem Types: CWE-22

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Spring-boot-actuator-logview Project Spring-boot-actuator-logview All All All All

References

ReferenceSourceLinkTags
backport directory traversal vulnerability fix · lukashinsch/spring-boot-actuator-logview@760acbb · GitHub MISC github.com Patch, Third Party Advisory
Directory Traversal · Advisory · lukashinsch/spring-boot-actuator-logview · GitHub CONFIRM github.com Third Party Advisory
Maven Central Repository Search MISC search.maven.org Third Party Advisory
Merge pull request #30 from lukashinsch/hotfix/dir-traversal · lukashinsch/spring-boot-actuator-logview@1c76e1e · GitHub MISC github.com Patch, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 983237 Java (maven) Security Update for eu.hinsch:spring-boot-actuator-logview (GHSA-p4q6-qxjx-8jgp)

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