Following the cyberattacks on ASOS, Whistles & Hobbs and Intermarché, another major cybersecurity story emerged this week. Researchers identified two critical vulnerabilities in PHP, the programming language that underpins many websites and web applications, including those built on platforms such as WordPress and Magento. The flaws could allow unauthenticated remote code execution, potentially enabling an attacker to take control of a vulnerable web server without needing to log in.
Details of the vulnerabilities became public on 20 October, before the planned release of security fixes. The PHP project responded by issuing emergency patches on 21 October. As organisations worldwide rushed to update their servers, a number of government agencies and other organisations temporarily took websites and online services offline as a precaution while patches were deployed and systems checked for exposure.
There is currently no public evidence that hostile agents managed to exploit the vulnerabilities before the fix was deployed, but from a retail perspective, the potential threat was extremely severe. Many retail platforms and content sites run on PHP, and the risk wasn’t specifically a WordPress bug or a Magento bug; it was in the underlying PHP runtime itself. A retailer could have fully updated application software and still be vulnerable if the server PHP version wasn’t patched.
The incident yet again highlights the extent to which retailers depend on technology beyond their direct control. COM , described it as a “wake-up call” for ecommerce businesses and warned that they must now ascertain whether attackers have gained access to their data.
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