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PHP web runtimes (CVE-2026-109618 and CVE-2026-109619)
El boletín de AWS trata dos vulnerabilidades en entornos de ejecución web de PHP, identificadas como CVE-2026-109618 y CVE-2026-109619. Para CVE-2026-109619, incluye una regla de AWS WAF que bloquea solicitudes POST que contienen indicadores de sesiones PHP y de carga de archivos mediante sesiones.
Custom rule for CVE-2026-109619 powershell { "Name": "PHP2Shell", "Priority": 0, "Statement": { "AndStatement": { "Statements": [ { "ByteMatchStatement": { "SearchString": "POST", "FieldToMatch": { "Method": {} }, "TextTransformations": [ { "Priority": 0, "Type": "NONE" } ], "PositionalConstraint": "EXACTLY" } }, { "OrStatement": { "Statements": [ { "ByteMatchStatement": { "SearchString": "PHPSESSID", "FieldToMatch": { "Cookies": { "MatchPattern": { "All": {} }, "MatchScope": "KEY", "OversizeHandling": "CONTINUE" } }, "TextTransformations": [ { "Priority": 0, "Type": "NONE" } ], "PositionalConstraint": "EXACTLY" } }, { "ByteMatchStatement": { "SearchString": "PHPSESSID", "FieldToMatch": { "Body": { "OversizeHandling": "CONTINUE" } }, "TextTransformations": [ { "Priority": 0, "Type": "NONE" } ], "PositionalConstraint": "CONTAINS" } } ] } }, { "ByteMatchStatement": { "SearchString": "PHP_SESSION_UPLOAD_PROGRESS", "FieldToMatch": { "Body": { "OversizeHandling": "CONTINUE" } }, "TextTransformations": [ { "Priority": 0, "Type": "NONE" } ], "PositionalConstraint": "CONTAINS" } } ] } }, "Action": { "Block": {} }, "VisibilityConfig": { "SampledRequestsEnabled": true, "CloudWatchMetricsEnabled": true, "MetricName": "PHP2Shell" } }