Cyber agency warns websites may go dark as PHP prepares critical fix

EU CYEBRSECURITY. A hand is seen on a laptop with binary codes displayed in front of the EU flag in this illustration taken, August 19, 2022.

Dado Ruvic/Reuters

PHP is used across large parts of the internet, and speculation has circulated over the past day that websites running the software could be exposed to serious cyber intrusions

AT A GLANCE

• PHP developers announced patches for two critical vulnerabilities rated 9.2 on the CVSS v4.0 scale, urging users to upgrade immediately.
• EU cybersecurity officials warned organizations unable to apply the fixes to consider taking affected websites offline due to the risk of unauthenticated remote code execution.
• Both CERT-EU and the Australian Cyber Security Centre advised organizations to identify affected PHP systems and prepare for patching, although no active exploitation has been reported.

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The developers of the widely used PHP programming language said on Wednesday, October 21, they would release patches for two critical vulnerabilities, as EU cybersecurity officials warned organizations unable to apply the fixes should take affected websites offline.

PHP is used across large parts of the internet, and speculation has circulated over the past day that websites running the software could be exposed to serious cyber intrusions.

“PHP is everywhere. It quietly powers WordPress, Drupal, Joomla, and Magento sites, shared hosting platforms, control panels, and an awful lot of software that doesn’t even advertise that it runs PHP under the hood,” cybersecurity company Huntress said in a blog post.

In a security update, PHP said both vulnerabilities were rated 9.2 on the CVSS v4.0 severity scale and urged users to “upgrade as soon as the release is available”.

It said a patch for both vulnerabilities was scheduled for 1400 GMT on Wednesday.

The European Union Computer Emergency Response Team (CERT-EU) said on Tuesday in an advisory that the 9.2 rating indicated a risk of unauthenticated remote code execution, a type of flaw that can allow attackers to run malicious code on vulnerable systems without logging in.

CERT-EU urged organisations to prepare for the immediate patching of affected assets and said those unable to do so should consider taking affected sites offline.

The Australian Cyber Security Centre (ACSC) issued similar guidance, urging organisations to identify PHP systems in their environments, prepare to apply patches and monitor applications for signs of malicious activity.

“ACSC is currently not aware of active exploitation related to these vulnerabilities,” the agency said.

Web hosting provider GoDaddy said the flaws could allow attackers to execute code on affected servers over the internet, potentially leading to data theft, website defacement or full system compromise.

PHP’s security team said details of the vulnerabilities, affected versions and the fixed releases would be published when patches are issued.

CERT-EU and the ACSC said all PHP versions from PHP 5 onward could be affected, although PHP has not disclosed which versions are vulnerable. – Rappler.com