CVE Vulnerability

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.

4 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

Scope

6.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://github.com/theonedev/onedev/security/advisories/GHSA-9pph-8gfc-6w2r Third Party Advisory
https://github.com/theonedev/onedev/commit/9196fd795e87dab069b4260a3590a0ea886e770f Patch Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:onedev_project:onedev:*:*:*:*:*:*:*:*
Information

Published : 2021-01-15 09:15

Updated : 2021-01-21 02:28

NVD link : CVE-2021-21250

Mitre link : CVE-2021-21250

Products Affected
No products.
CWE
CWE-538