Pre-Auth Unsafe Deserialization on AttachmentUploadServet
CVE-2021-21242

10CRITICAL

Key Information:

Vendor

Theonedev

Status
Onedev
Vendor
CVE Published:
15 January 2021

What is CVE-2021-21242?

OneDev is an all-in-one devops platform. In OneDev before version 4.0.3, there is a critical vulnerability which can lead to pre-auth remote code execution. AttachmentUploadServlet deserializes untrusted data from the Attachment-Support header. This Servlet does not enforce any authentication or authorization checks. This issue may lead to pre-auth remote code execution. This issue was fixed in 4.0.3 by removing AttachmentUploadServlet and not using deserialization

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/f864053176c08f...
x_refsource_MISC

EPSS Score

40% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.