CVE-2021-21246CWE-862

Pre-Auth Access token leak

High · published January 15, 2021

CVSS v3.1
8.6
EPSS
49%
Percentile
98.9
In the wild
Unconfirmed
What it is

OneDev is an all-in-one devops platform. In OneDev before version 4.0.3, the REST UserResource endpoint performs a security check to make sure that only administrators can list user details. However for the `/users/{id}` endpoint there are no security checks enforced so it is possible to retrieve arbitrary user details including their Access Tokens! These access tokens can be used to access the API or clone code in the build spec via the HTTP(S) protocol. It has permissions to all projects accessible by the user account. This issue may lead to `Sensitive data leak` and leak the Access Token which can be used to impersonate the administrator or any other users. This issue was addressed in 4.0.3 by removing user info from restful api.

The record
Technical detail
CVSS v3.1
8.6 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.49051 · 98.9th percentile
Weakness
CWE-862 · Missing Authorization
Published
2021-01-15T20:10Z
EPSS history
Timeline
  • 15 JAN 20:10Z
    Pre-Auth Access token leak
    cvelistv5