Zero‑Day Remote Code Execution in ipTIME A3004T Router Firmware Allows Pre‑Auth Root Command Execution
What Happened — Researchers disclosed a zero‑day flaw in the ipTIME A3004T firmware (v14.19.0). The EAD service listens on UDP 56026 and forwards attacker‑controlled data directly to system() without sanitization, enabling unauthenticated command injection with root privileges. The exploit also exposes buffer‑overflow, format‑string, path‑traversal and DoS vectors in the same code path.
Why It Matters for Compliance & Audit Readiness
- Demonstrates a classic control‑gap: lack of input validation and insecure default services, exactly the type of weakness SOC 2’s CC6.1 – System Operations and CC7.1 – Change Management are designed to detect and evidence.
- Continuous‑compliance programs must capture vulnerability‑management evidence (patch status, configuration baselines, monitoring alerts) to prove due diligence during a SOC 2 audit.
- Mapping this flaw to a control‑mapping framework gives you ready‑to‑use audit artifacts and a defensible remediation timeline.
Who Is Affected — Organizations that deploy ipTIME A3004T (or similar OpenWRT‑based edge routers) across SMB, education, and remote‑office environments; any network that exposes the device to untrusted IP ranges.
Recommended Actions
- Immediately verify firmware version; upgrade to a patched release if available.
- Block inbound UDP 56026 at the perimeter and enforce network‑segmentation for management interfaces.
- Add the vulnerability to your asset‑vulnerability inventory; map it to SOC 2 CC6.1 and CC7.1 controls and capture remediation evidence.
- Deploy continuous monitoring for anomalous UDP traffic to the affected port.
Source: Exploit‑DB #52644
Technical Notes — The flaw resides in handle_send_cmd() (lines 512‑533) of ead.c. Attack vectors include pre‑auth RCE via crafted UDP packets, a buffer overflow in ead-client.c:245, a format‑string issue at ead.c:952, path traversal in tinysrp/t_misc.c:143, and a DoS loop at ead.c:716. No CVE has been assigned yet (zero‑day).