Impact

We have identified that some gamification module ZIP archives have been built with phpunit dev dependencies. PHPUnit contains a php script that would allow, on a webserver, an attacker to perform a RCE.

This vulnerability impacts

• phpunit before 4.8.28 and 5.x before 5.6.3 as reported in CVE-2017-9841
• phpunit >= 5.63 before 7.5.19 and 8.5.1 (this is a newly found vulnerability that is currently being submitted as a CVE after disclosure was provided to phpunit maintainers)

You can read PrestaShop official statement about this vulnerability here.

Patches

In the security patch, we look for the unwanted vendor/phpunit folder and remove it if we find it. This allows users to fix the security issue when upgrading.

Workarounds

Users can also simply remove the unwanted vendor/phpunit folder.

References

https://nvd.nist.gov/vuln/detail/CVE-2017-9841

For more information

If you have any questions or comments about this advisory, email us at security@prestashop.com

References

• GHSA-769f-539v-f5jg
• PrestaShopCorp/gamification@5044bda
• https://build.prestashop.com/news/critical-security-vulnerability-in-prestashop-modules/