Pico 300alpha2 Exploit «EXTENDED - 2026»

alert tcp $EXTERNAL_NET any -> $HOME_NET 5002 (msg:"PICO 300alpha2 P2P buffer overflow attempt"; flow:to_server,established; content:"|50 49 43 4F 32|"; depth:5; content:"|00|"; within:2; byte_test:4,>,256,0,relative; sid:20261001; rev:1;)

During differential power analysis (DPA) testing, researchers noticed that the Pico 300alpha2’s current draw spiked irregularly when USB packets of length 0xFFFF were sent immediately after a brown-out reset. Further probing revealed that the spike correlated with a jump to an uninitialized pointer in the USB task scheduler. pico 300alpha2 exploit

The exploit combines:

The vulnerable function resides in p2p_session.c , specifically within the parse_peer_info() routine. When a client sends a PEER_INFO request with a device_name field exceeding 512 bytes, the function copies it into a fixed 256-byte stack buffer using strcpy() without bounds checking. alert tcp $EXTERNAL_NET any -> $HOME_NET 5002 (msg:"PICO

Use stack cookies to detect overflows before function return. When a client sends a PEER_INFO request with

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