CVE-2021-21250

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Summary

CVECVE-2021-21250
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-01-15 21:15:00 UTC
Updated2021-01-21 14:28:00 UTC
DescriptionOneDev is an all-in-one devops platform. In OneDev before version 4.0.3, there is a critical vulnerability which may lead to arbitrary file read. When BuildSpec is provided in XML format, the spec is processed by XmlBuildSpecMigrator.migrate(buildSpecString); which processes the XML document without preventing the expansion of external entities. These entities can be configured to read arbitrary files from the file system and dump their contents in the final XML document to be migrated. If the files are dumped in properties included in the YAML file, it will be possible for an attacker to read them. If not, it is possible for an attacker to exfiltrate the contents of these files Out Of Band. This issue was addressed in 4.0.3 by ignoring ENTITY instructions in xml file.

Risk And Classification

Problem Types: CWE-538

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Onedev Project Onedev All All All All
Application Onedev Project Onedev All All All All

References

ReferenceSourceLinkTags
Fix XXE injection attack by disabling XML DTD handling · theonedev/onedev@9196fd7 · GitHub MISC github.com Patch, Third Party Advisory
Post-Auth External Entity Expansion (XXE) · Advisory · theonedev/onedev · GitHub CONFIRM github.com Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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