CVE-2020-15236

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Summary

CVECVE-2020-15236
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-10-05 15:15:00 UTC
Updated2020-10-09 17:06:00 UTC
DescriptionIn Wiki.js before version 2.5.151, directory traversal outside of Wiki.js context is possible when a storage module with local asset cache fetching is enabled. A malicious user can potentially read any file on the file system by crafting a special URL that allows for directory traversal. This is only possible when a storage module implementing local asset cache (e.g Local File System or Git) is enabled and that no web application firewall solution (e.g. cloudflare) strips potentially malicious URLs. Commit 084dcd69d1591586ee4752101e675d5f0ac6dcdc fixes this vulnerability by sanitizing the path before it is passed on to the storage module. The sanitization step removes any directory traversal (e.g. `..` and `.`) sequences as well as invalid filesystem characters from the path. As a workaround, disable any storage module with local asset caching capabilities such as Local File System and Git.

Risk And Classification

Problem Types: CWE-22

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Requarks Wiki.js All All All All
Application Requarks Wiki.js All All All All

References

ReferenceSourceLinkTags
fix: strip directory traversal sequences from asset paths · Requarks/wiki@084dcd6 · GitHub MISC github.com Patch, Third Party Advisory
Asset directory traversal with some storage modules · Advisory · Requarks/wiki · GitHub CONFIRM github.com Third Party Advisory
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