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Vulnerability Details : CVE-2021-21250

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.
Publish Date : 2021-01-15 Last Update Date : 2021-01-21
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- CVSS Scores & Vulnerability Types

CVSS Score
4.0
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication ???
Gained Access None
Vulnerability Type(s)
CWE ID 538

- Products Affected By CVE-2021-21250

# Product Type Vendor Product Version Update Edition Language
1 Application Onedev Project Onedev * * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Onedev Project Onedev 1

- References For CVE-2021-21250

https://github.com/theonedev/onedev/security/advisories/GHSA-9pph-8gfc-6w2r CONFIRM
https://github.com/theonedev/onedev/commit/9196fd795e87dab069b4260a3590a0ea886e770f

- Metasploit Modules Related To CVE-2021-21250

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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