CVE-2021-43795

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Summary

CVECVE-2021-43795
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-12-02 18:15:00 UTC
Updated2021-12-06 18:24:00 UTC
DescriptionArmeria is an open source microservice framework. In affected versions an attacker can access an Armeria server's local file system beyond its restricted directory by sending an HTTP request whose path contains `%2F` (encoded `/`), such as `/files/..%2Fsecrets.txt`, bypassing Armeria's path validation logic. Armeria 1.13.4 or above contains the hardened path validation logic that handles `%2F` properly. This vulnerability can be worked around by inserting a decorator that performs an additional validation on the request path.

Risk And Classification

Problem Types: CWE-22

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Linecorp Armeria All All All All

References

ReferenceSourceLinkTags
Merge pull request from GHSA-8fp4-rp6c-5gcv · line/armeria@e2697a5 · GitHub MISC github.com
Exclude `%2F(/)` from decoding of percents in a request path. by ikhoon · Pull Request #3855 · line/armeria · GitHub MISC github.com
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in com.linecorp.armeria:armeria · Advisory · line/armeria · GitHub CONFIRM github.com
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