CVE-2017-7572 | BDVDB-2026-83758 Detail

Description#

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/status, by which time the requesting process may have been replaced by a different process with the same PID that has different privileges then the original requester.

Impact#

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Exploit#

History#

1. Version 12017-04-06Record published in the CVE List.
2. Version 22024-09-16Most recent update recorded in the CVE List.