The _checkPolkitPrivilege function in serviceHelper.py in Back In Time (aka backintime) 1.1.18 and earlier uses a deprecated polkit authorization method (unix-process) that is subject to a race condition (time of check, time of use). With this authorization method, the owner of a process requesting a polkit operation is checked by polkitd via /proc/<pid>/status, by which time the requesting process may have been replaced by a different process with the same PID that has different privileges then the original requester.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-09-16T16:32:59.625Z

Reserved: 2017-04-06T00:00:00Z

Link: CVE-2017-7572

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2017-04-06T18:59:00.353

Modified: 2025-04-20T01:37:25.860

Link: CVE-2017-7572

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.