CVE-2021-22966

HIGH

8.8

Description

Privilege escalation from Editor to Admin using Groups in Concrete CMS versions 8.5.6 and below. If a group is granted "view" permissions on the bulkupdate page, then users in that group can escalate to being an administrator with a specially crafted curl. Fixed by adding a check for group permissions before allowing a group to be moved. Concrete CMS Security team CVSS scoring: 7.1 AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:HCredit for discovery: "Adrian Tiron from FORTBRIDGE ( https://www.fortbridge.co.uk/ )"This fix is also in Concrete version 9.0.0

CVE Details

CVSS v3.1 Score8.8

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published11/19/2021

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

concretecms:concrete_cms

Weaknesses (CWE)

CWE-863

References

https://documentation.concretecms.org/developers/introduction/version-history/857-release-notes(support@hackerone.com)

https://hackerone.com/reports/1362747(support@hackerone.com)

https://documentation.concretecms.org/developers/introduction/version-history/857-release-notes(af854a3a-2127-422b-91ae-364da2661108)

https://hackerone.com/reports/1362747(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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