Vulnerability Description
OneDev 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Onedev Project | Onedev | < 4.0.3 |
Related Weaknesses (CWE)
References
- https://github.com/theonedev/onedev/commit/9196fd795e87dab069b4260a3590a0ea886e7PatchThird Party Advisory
- https://github.com/theonedev/onedev/security/advisories/GHSA-9pph-8gfc-6w2rThird Party Advisory
- https://github.com/theonedev/onedev/commit/9196fd795e87dab069b4260a3590a0ea886e7PatchThird Party Advisory
- https://github.com/theonedev/onedev/security/advisories/GHSA-9pph-8gfc-6w2rThird Party Advisory
FAQ
What is CVE-2021-21250?
CVE-2021-21250 is a vulnerability with a CVSS score of 7.7 (HIGH). OneDev 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 ...
How severe is CVE-2021-21250?
CVE-2021-21250 has been rated HIGH with a CVSS base score of 7.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-21250?
Check the references section above for vendor advisories and patch information. Affected products include: Onedev Project Onedev.