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CVE-2021-29487: Improper Authentication

August 30, 2021 (updated October 21, 2021)

octobercms in a CMS platform based on the Laravel PHP Framework. In affected versions of the october/system package an attacker can exploit this vulnerability to bypass authentication and takeover of and user account on an October CMS server. The vulnerability is exploitable by unauthenticated users via a specially crafted request. This only affects frontend users and the attacker must obtain a Laravel secret key for cookie encryption and signing in order to exploit this vulnerability. The issue has been patched in Build 472 and v1.1.5.

References

  • github.com/advisories/GHSA-h76r-vgf3-j6w5
  • github.com/octobercms/library/commit/016a297b1bec55d2e53bc889458ed2cb5c3e9374
  • github.com/octobercms/library/commit/5bd1a28140b825baebe6becd4f7562299d3de3b9
  • github.com/octobercms/october/security/advisories/GHSA-h76r-vgf3-j6w5
  • nvd.nist.gov/vuln/detail/CVE-2021-29487

Code Behaviors & Features

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Affected versions

All versions before 1.0.472, all versions starting from 1.1.1 before 1.1.5

Fixed versions

  • 1.0.472
  • 1.1.5

Solution

Upgrade to versions 1.0.472, 1.1.5 or above.

Impact 7.4 HIGH

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

Learn more about CVSS

Weakness

  • CWE-287: Improper Authentication

Source file

packagist/october/system/CVE-2021-29487.yml

Spotted a mistake? Edit the file on GitLab.

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