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  5. CVE-2021-22951

CVE-2021-22951: Authorization Bypass Through User-Controlled Key

November 23, 2021 (updated November 24, 2021)

Unauthorized individuals could view password protected files using view_inline in Concrete CMS (previously concrete 5) prior to version 8.5.7. Concrete CMS now checks to see if a file has a password in view_inline and, if it does, the file is not rendered.For version 8.5.6, the following mitigations were put in place a. restricting file types for view_inline to images only b. putting a warning in the file manager to advise users.Credit for discovery: “Solar Security Research Team"Concrete CMS security team CVSS scoring is 5.3: AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NThis fix is also in Concrete version 9.0.0

References

  • documentation.concretecms.org/developers/introduction/version-history/857-release-notes
  • github.com/advisories/GHSA-rhf5-f553-xg82
  • hackerone.com/reports/1102014
  • nvd.nist.gov/vuln/detail/CVE-2021-22951

Code Behaviors & Features

Detect and mitigate CVE-2021-22951 with GitLab Dependency Scanning

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Affected versions

All versions before 8.5.7

Fixed versions

  • 8.5.7

Solution

Upgrade to version 8.5.7 or above.

Impact 7.5 HIGH

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

Learn more about CVSS

Weakness

  • CWE-639: Authorization Bypass Through User-Controlled Key

Source file

packagist/concrete5/core/CVE-2021-22951.yml

Spotted a mistake? Edit the file on GitLab.

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