CVE-2014-3947
CVE-2014-3947 is a Code Injection vulnerability in alex_kellner powermail. O3 Security detects and blocks CVE-2014-3947 exploitation at runtime via eBPF exploit-chain detection and L7 egress monitoring, even on unpatched systems.
Unrestricted file upload vulnerability in the powermail extension before 1.6.11 and 2.x before 2.0.14 for TYPO3 allows remote attackers to execute arbitrary code by uploading a file…
Description
Unrestricted file upload vulnerability in the powermail extension before 1.6.11 and 2.x before 2.0.14 for TYPO3 allows remote attackers to execute arbitrary code by uploading a file with a crafted extension, then accessing it via unspecified vectors.
Affected Products
powermailalex_kellnerDetection & mitigation playbook
Vendor / applianceDetect
Inventory every alex_kellner powermail deployment and check each version against the affected-products list above. Because the exploit targets the running system rather than your application code, also watch for remote code execution at the network and runtime layer — O3 flags the exploit behaviour from runtime telemetry and egress traffic even before a vulnerable build is confirmed.
Remediation status
No patch has shipped for CVE-2014-3947 yet — track the alex_kellner powermail advisory for a fixed release and apply the workarounds below in the meantime.
Mitigate without a patch
Cut exposure now: restrict the management/admin interface to trusted networks, segment the device, and apply the vendor's recommended configuration mitigations and any WAF/IPS signature. O3's runtime protection blocks the exploit chain at execution, holding the line on unpatched or end-of-life systems until you can patch.
How O3 protects you
O3 detects and blocks CVE-2014-3947 exploitation at runtime: eBPF exploit-chain detection, plus L7 egress monitoring that catches the post-exploitation callback and severs the attacker's outbound channel.
Tailored to CVE-2014-3947. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2014-3947 being exploited in your environment?
O3's eBPF runtime sensors and L7 egress monitoring detect and block the CVE-2014-3947 exploit chain at execution — protecting unpatched and end-of-life systems until the vendor patch is applied.