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/status, by which time the requesting process may have been replaced by a different process with the same PID that has different privileges then the original requester.
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Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2017-04-06T18:00:00Z
Updated: 2024-09-16T16:32:59.625Z
Reserved: 2017-04-06T00:00:00Z
Link: CVE-2017-7572
Vulnrichment
No data.
NVD
Status : Modified
Published: 2017-04-06T18:59:00.353
Modified: 2024-11-21T03:32:11.593
Link: CVE-2017-7572
Redhat
No data.