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CVE-2018-17856: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

May 13, 2022 (updated July 21, 2023)

An issue was discovered in Joomla! before 3.8.13. com_joomlaupdate allows the execution of arbitrary code. The default ACL config enabled the ability of Administrator-level users to access com_joomlaupdate and trigger code execution.

References

  • developer.joomla.org/security-centre/752-20181002-core-inadequate-default-access-level-for-com-joomlaupdate.html
  • github.com/advisories/GHSA-9m72-pw47-292w
  • nvd.nist.gov/vuln/detail/CVE-2018-17856
  • web.archive.org/web/20210124211736/http://www.securityfocus.com/bid/105559
  • web.archive.org/web/20211208125303/http://www.securitytracker.com/id/1041914

Code Behaviors & Features

Detect and mitigate CVE-2018-17856 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →

Affected versions

All versions starting from 2.5.4 up to 3.8.12

Fixed versions

  • 3.8.13

Solution

Upgrade to version 3.8.13 or above.

Impact 7.2 HIGH

CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Learn more about CVSS

Weakness

  • CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Source file

packagist/joomla/framework/CVE-2018-17856.yml

Spotted a mistake? Edit the file on GitLab.

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