GHSA-cj3c-5xpm-cx94

Source

https://github.com/advisories/GHSA-cj3c-5xpm-cx94

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/03/GHSA-cj3c-5xpm-cx94/GHSA-cj3c-5xpm-cx94.json

JSON Data

https://api.test.osv.dev/v1/vulns/GHSA-cj3c-5xpm-cx94

Aliases

CVE-2024-29200

Published

2024-03-29T19:05:49Z

Modified

2024-03-29T19:26:52.471613Z

Severity

6.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N CVSS Calculator

Summary

Kimai API returns timesheet entries a user should not be authorized to view

Details

Summary

The permission view_other_timesheet performs differently for the Kimai UI and the API, thus returning unexpected data through the API.

Details

When setting the view_other_timesheet permission to true, on the frontend, users can only see timesheet entries for teams they are a part of. When requesting all timesheets from the API, however, all timesheet entries are returned, regardless of whether the user shares team permissions or not.

Example: There are projects P1 and P2, Teams T1 and T2, users U1 and U2 and Timesheet entries E1 and E2. U1 is team leader of team T1 and has access to P1. U2 is in Team T2 and has access to both P1 and P2. U2 creates E1 for P1 and E2 for P2. In the UI, U1 with view _other_timesheet perms sees E1 as he is a part of T1 that has access to P1. In the API, however, he has access to E1 and E2.

Additionally, if U1 is not a team leader T1, he does not see any timesheet from a user other than himself in the UI, but still all timesheets in the API.

PoC

Give a user view_other_timesheet permission
The result of the UI and the API call to /api/timesheets?user=all differs in the data that is being returned

Curl command:

curl -X 'GET' \
  'https://kimai.instance.com/api/timesheets?user=all' \
  -H 'accept: application/json' \
  -H 'X-AUTH-USER: username' \
  -H 'X-AUTH-TOKEN: api_token'

Impact

This is at least an insufficient granularity of access control weakness. People can see timesheet entries they are not supposed to. This greatly affects the confidentiality of timesheet entries.

Restricting API access to administrators is also not a valid solution, as API access is needed, for example, to use the mobile app.

Database specific

{
    "nvd_published_at": "2024-03-28T14:15:14Z",
    "cwe_ids": [
        "CWE-1220"
    ],
    "severity": "MODERATE",
    "github_reviewed": true,
    "github_reviewed_at": "2024-03-29T19:05:49Z"
}

References

Affected packages

Packagist / kimai/kimai

Package

Name: kimai/kimai
Purl: pkg:composer/kimai/kimai

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.13.0

Affected versions

0.*

0.1

0.2

0.3

0.4

0.5

0.6

0.6.1

0.7

0.8

0.8.1

0.9

1.*

1.0

1.0.1

1.1

1.2

1.3

1.4

1.4.1

1.4.2

1.5

1.6

1.6.1

1.6.2

1.7

1.8

1.9

1.10

1.10.1

1.10.2

1.11

1.11.1

1.12

1.13

1.14

1.14.1

1.14.2

1.14.3

1.15

1.15.1

1.15.2

1.15.3

1.15.4

1.15.5

1.15.6

1.16

1.16.1

1.16.2

1.16.3

1.16.4

1.16.5

1.16.6

1.16.7

1.16.8

1.16.9

1.16.10

1.17

1.17.1

1.18

1.18.1

1.18.2

1.19

1.19.1

1.19.2

1.19.3

1.19.4

1.19.5

1.19.6

1.19.7

1.20

1.20.1

1.20.2

1.20.3

1.20.4

1.21.0

1.22.0

1.22.1

1.23.0

1.23.1

1.24.0

1.25.0

1.26.0

1.27.0

1.28.0

1.28.1

1.29.0

1.29.1

1.30.0

1.30.1

1.30.2

1.30.3

1.30.4

1.30.5

1.30.6

1.30.7

1.30.8

1.30.9

1.30.10

1.30.11

2.*

2.0.0-alpha

2.0.0-beta

2.0.0-beta-2

2.0.0-beta-3

2.0.0-rc-1

2.0.0

2.0.1

2.0.2

2.0.3

2.0.4

2.0.5

2.0.6

2.0.7

2.0.8

2.0.9

2.0.10

2.0.11

2.0.12

2.0.13

2.0.14

2.0.15

2.0.16

2.0.17

2.0.18

2.0.19

2.0.20

2.0.21

2.0.22

2.0.23

2.0.24

2.0.25

2.0.26

2.0.27

2.0.28

2.0.29

2.0.30

2.0.31

2.0.32

2.0.33

2.0.34

2.0.35

2.1.0

2.2.0

2.2.1

2.3.0

2.4.0

2.4.1

2.5.0

2.6.0

2.7.0

2.8.0

2.9.0

2.10.0

2.11.0

2.12.0