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Vulnerability Details :

CVE-2023-6507

Summary
Assigner-PSF
Assigner Org ID-28c92f92-d60d-412d-b760-e73465c3df22
Published At-08 Dec, 2023 | 18:20
Updated At-02 Aug, 2024 | 08:35
Rejected At-
Credits

Groups not dropped before running subprocess when using empty 'extra_groups' parameter

An issue was found in CPython 3.12.0 `subprocess` module on POSIX platforms. The issue was fixed in CPython 3.12.1 and does not affect other stable releases. When using the `extra_groups=` parameter with an empty list as a value (ie `extra_groups=[]`) the logic regressed to not call `setgroups(0, NULL)` before calling `exec()`, thus not dropping the original processes' groups before starting the new process. There is no issue when the parameter isn't used or when any value is used besides an empty list. This issue only impacts CPython processes run with sufficient privilege to make the `setgroups` system call (typically `root`).

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:PSF
Assigner Org ID:28c92f92-d60d-412d-b760-e73465c3df22
Published At:08 Dec, 2023 | 18:20
Updated At:02 Aug, 2024 | 08:35
Rejected At:
▼CVE Numbering Authority (CNA)
Groups not dropped before running subprocess when using empty 'extra_groups' parameter

An issue was found in CPython 3.12.0 `subprocess` module on POSIX platforms. The issue was fixed in CPython 3.12.1 and does not affect other stable releases. When using the `extra_groups=` parameter with an empty list as a value (ie `extra_groups=[]`) the logic regressed to not call `setgroups(0, NULL)` before calling `exec()`, thus not dropping the original processes' groups before starting the new process. There is no issue when the parameter isn't used or when any value is used besides an empty list. This issue only impacts CPython processes run with sufficient privilege to make the `setgroups` system call (typically `root`).

Affected Products
Vendor
Python Software FoundationPython Software Foundation
Product
CPython
Repo
https://github.com/python/cpython
Platforms
  • POSIX
Default Status
unaffected
Versions
Affected
  • From 3.12.0 before 3.12.1 (python)
  • From 3.13.0a1 before 3.13.0a3 (python)
Problem Types
TypeCWE IDDescription
CWECWE-269CWE-269 Improper Privilege Management
Type: CWE
CWE ID: CWE-269
Description: CWE-269 Improper Privilege Management
Metrics
VersionBase scoreBase severityVector
3.16.1MEDIUM
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Version: 3.1
Base score: 6.1
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
CAPEC-122CAPEC-122 Privilege Abuse
CAPEC ID: CAPEC-122
Description: CAPEC-122 Privilege Abuse
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/python/cpython/issues/112334
issue-tracking
https://mail.python.org/archives/list/security-announce@python.org/thread/AUL7QFHBLILGISS7U63B47AYSSGJJQZD/
vendor-advisory
https://github.com/python/cpython/commit/9fe7655c6ce0b8e9adc229daf681b6d30e6b1610
patch
https://github.com/python/cpython/commit/10e9bb13b8dcaa414645b9bd10718d8f7179e82b
patch
https://github.com/python/cpython/commit/85bbfa8a4bbdbb61a3a84fbd7cb29a4096ab8a06
patch
Hyperlink: https://github.com/python/cpython/issues/112334
Resource:
issue-tracking
Hyperlink: https://mail.python.org/archives/list/security-announce@python.org/thread/AUL7QFHBLILGISS7U63B47AYSSGJJQZD/
Resource:
vendor-advisory
Hyperlink: https://github.com/python/cpython/commit/9fe7655c6ce0b8e9adc229daf681b6d30e6b1610
Resource:
patch
Hyperlink: https://github.com/python/cpython/commit/10e9bb13b8dcaa414645b9bd10718d8f7179e82b
Resource:
patch
Hyperlink: https://github.com/python/cpython/commit/85bbfa8a4bbdbb61a3a84fbd7cb29a4096ab8a06
Resource:
patch
▼Authorized Data Publishers (ADP)
1. CISA ADP Vulnrichment
Affected Products
Vendor
Python Software Foundationpython
Product
cpython
CPEs
  • cpe:2.3:a:python:cpython:3.13.0:*:*:*:*:*:*:*
Default Status
unknown
Versions
Affected
  • 3.13.0
Vendor
Python Software Foundationpython
Product
cpython
CPEs
  • cpe:2.3:a:python:cpython:*:*:*:*:*:*:*:*
Default Status
unknown
Versions
Affected
  • 3.12.0
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
2. CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/python/cpython/issues/112334
issue-tracking
x_transferred
https://mail.python.org/archives/list/security-announce@python.org/thread/AUL7QFHBLILGISS7U63B47AYSSGJJQZD/
vendor-advisory
x_transferred
https://github.com/python/cpython/commit/9fe7655c6ce0b8e9adc229daf681b6d30e6b1610
patch
x_transferred
https://github.com/python/cpython/commit/10e9bb13b8dcaa414645b9bd10718d8f7179e82b
patch
x_transferred
https://github.com/python/cpython/commit/85bbfa8a4bbdbb61a3a84fbd7cb29a4096ab8a06
patch
x_transferred
Hyperlink: https://github.com/python/cpython/issues/112334
Resource:
issue-tracking
x_transferred
Hyperlink: https://mail.python.org/archives/list/security-announce@python.org/thread/AUL7QFHBLILGISS7U63B47AYSSGJJQZD/
Resource:
vendor-advisory
x_transferred
Hyperlink: https://github.com/python/cpython/commit/9fe7655c6ce0b8e9adc229daf681b6d30e6b1610
Resource:
patch
x_transferred
Hyperlink: https://github.com/python/cpython/commit/10e9bb13b8dcaa414645b9bd10718d8f7179e82b
Resource:
patch
x_transferred
Hyperlink: https://github.com/python/cpython/commit/85bbfa8a4bbdbb61a3a84fbd7cb29a4096ab8a06
Resource:
patch
x_transferred
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:cna@python.org
Published At:08 Dec, 2023 | 19:15
Updated At:07 May, 2024 | 22:15

An issue was found in CPython 3.12.0 `subprocess` module on POSIX platforms. The issue was fixed in CPython 3.12.1 and does not affect other stable releases. When using the `extra_groups=` parameter with an empty list as a value (ie `extra_groups=[]`) the logic regressed to not call `setgroups(0, NULL)` before calling `exec()`, thus not dropping the original processes' groups before starting the new process. There is no issue when the parameter isn't used or when any value is used besides an empty list. This issue only impacts CPython processes run with sufficient privilege to make the `setgroups` system call (typically `root`).

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Primary3.14.9MEDIUM
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
Secondary3.16.1MEDIUM
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Type: Primary
Version: 3.1
Base score: 4.9
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
Type: Secondary
Version: 3.1
Base score: 6.1
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
CPE Matches
Python Software Foundation
python
>>python>>3.12.0
cpe:2.3:a:python:python:3.12.0:-:*:*:*:*:*:*
Python Software Foundation
python
>>python>>3.13.0
cpe:2.3:a:python:python:3.13.0:alpha1:*:*:*:*:*:*
Python Software Foundation
python
>>python>>3.13.0
cpe:2.3:a:python:python:3.13.0:alpha2:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
NVD-CWE-noinfoPrimarynvd@nist.gov
CWE-269Secondarycna@python.org
CWE ID: NVD-CWE-noinfo
Type: Primary
Source: nvd@nist.gov
CWE ID: CWE-269
Type: Secondary
Source: cna@python.org
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://github.com/python/cpython/commit/10e9bb13b8dcaa414645b9bd10718d8f7179e82bcna@python.org
N/A
https://github.com/python/cpython/commit/85bbfa8a4bbdbb61a3a84fbd7cb29a4096ab8a06cna@python.org
N/A
https://github.com/python/cpython/commit/9fe7655c6ce0b8e9adc229daf681b6d30e6b1610cna@python.org
N/A
https://github.com/python/cpython/issues/112334cna@python.org
Issue Tracking
Patch
https://mail.python.org/archives/list/security-announce@python.org/thread/AUL7QFHBLILGISS7U63B47AYSSGJJQZD/cna@python.org
Third Party Advisory
Hyperlink: https://github.com/python/cpython/commit/10e9bb13b8dcaa414645b9bd10718d8f7179e82b
Source: cna@python.org
Resource: N/A
Hyperlink: https://github.com/python/cpython/commit/85bbfa8a4bbdbb61a3a84fbd7cb29a4096ab8a06
Source: cna@python.org
Resource: N/A
Hyperlink: https://github.com/python/cpython/commit/9fe7655c6ce0b8e9adc229daf681b6d30e6b1610
Source: cna@python.org
Resource: N/A
Hyperlink: https://github.com/python/cpython/issues/112334
Source: cna@python.org
Resource:
Issue Tracking
Patch
Hyperlink: https://mail.python.org/archives/list/security-announce@python.org/thread/AUL7QFHBLILGISS7U63B47AYSSGJJQZD/
Source: cna@python.org
Resource:
Third Party Advisory

Change History

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