Post-Auth Arbitrary Code execution via Groovy script injection
CVE-2021-21248

9.6CRITICAL

Key Information:

Vendor

Theonedev

Status
Onedev
Vendor
CVE Published:
15 January 2021

What is CVE-2021-21248?

OneDev is an all-in-one devops platform. In OneDev before version 4.0.3, there is a critical vulnerability involving the build endpoint parameters. InputSpec is used to define parameters of a Build spec. It does so by using dynamically generated Groovy classes. A user able to control job parameters can run arbitrary code on OneDev's server by injecting arbitrary Groovy code. The ultimate result is in the injection of a static constructor that will run arbitrary code. For a full example refer to the referenced GHSA. This issue was addressed in 4.0.3 by escaping special characters such as quote from user input.

Affected Version(s)

onedev < 4.0.3

References

https://github.com/theonedev/onedev/security/advisories/G...
x_refsource_CONFIRM
https://github.com/theonedev/onedev/commit/39d95ab8122c5d...
x_refsource_MISC

CVSS V3.1

Score:
9.6
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.