CVE-2017-7572
published 2017-04-06CVE-2017-7572: The _checkPolkitPrivilege function in serviceHelper.py in Back In Time (aka backintime) 1.1.18 and earlier uses a deprecated polkit authorization method…
PriorityP338high8.1CVSS 3.0
AVNACHPRNUINSUCHIHAH
EPSS
1.08%
61.5th percentile
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requesting a polkit operation is checked by polkitd via /proc//status, by which time the requesting process may have been replaced by a different process with the same PID that has different privileges then the original requester.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| backintime_project | backintime | <= 1.1.18 | — |
| backintime_project | backintime | >= 0 < 1.1.12-2 | 1.1.12-2 |
| backintime_project | backintime | >= 0 < 1.1.12-2 | 1.1.12-2 |
| backintime_project | backintime | >= 0 < 1.1.12-2 | 1.1.12-2 |
| backintime_project | backintime | >= 0 < 1.1.12-2 | 1.1.12-2 |
| debian | backintime | < backintime 1.1.12-2 (bookworm) | backintime 1.1.12-2 (bookworm) |
CVSS provenance
nvdv3.08.1HIGHCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.09.3CRITICALAV:N/AC:M/Au:N/C:C/I:C/A:C
osv8.1HIGH
vendor_debian8.1HIGH
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GHSA
GHSA-gq8h-7hr7-25cg: The _checkPolkitPrivilege function in serviceHelper
ghsa_unreviewed·2022-05-17
CVE-2017-7572 [HIGH] CWE-362 GHSA-gq8h-7hr7-25cg: The _checkPolkitPrivilege function in serviceHelper
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requesting a polkit operation is checked by polkitd via /proc//status, by which time the requesting process may have been replaced by a different process with the same PID that has different privileges then the original requester.
OSV
CVE-2017-7572: The _checkPolkitPrivilege function in serviceHelper
osv·2017-04-06·CVSS 8.1
CVE-2017-7572 [HIGH] CVE-2017-7572: The _checkPolkitPrivilege function in serviceHelper
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//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.
Debian
CVE-2017-7572: backintime - The _checkPolkitPrivilege function in serviceHelper.py in Back In Time (aka back...
vendor_debian·2017·CVSS 8.1
CVE-2017-7572 [HIGH] CVE-2017-7572: backintime - The _checkPolkitPrivilege function in serviceHelper.py in Back In Time (aka back...
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//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.
Scope: local
bookworm: resolved (fixed in 1.1.12-2)
bullseye: resolved (fixed in 1.1.12-2)
forky: resolved (fixed in 1.1.12-2)
sid: resolved (fixed in 1.1.12-2)
trixie: resolved (fixed in 1.1.12-2)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2017-7572 backintime: Race condition in the checkPolkitPrivilege function [fedora-all]
bugzilla·2017-04-12·CVSS 8.1
CVE-2017-7572 [HIGH] CVE-2017-7572 backintime: Race condition in the checkPolkitPrivilege function [fedora-all]
CVE-2017-7572 backintime: Race condition in the checkPolkitPrivilege function [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple suppo
Bugzilla
CVE-2017-7572 backintime: Race condition in the checkPolkitPrivilege function
bugzilla·2017-04-12·CVSS 8.1
CVE-2017-7572 [HIGH] CVE-2017-7572 backintime: Race condition in the checkPolkitPrivilege function
CVE-2017-7572 backintime: Race condition in the checkPolkitPrivilege function
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//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.
Upstream patch:
https://github.com/bit-team/backintime/commit/7f208dc547f569b689c888103e3b593a48cd1869
References:
https://github.com/bit-team/backintime/releases/tag/v1.1.20
Discussion:
Created
2017-04-06
Published