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Stack-based Buffer Overflow


Severity High
Score 9.9/10


Multiple exploitable buffer overflow vulnerabilities exist in the PubNub message handler for the "cc" channel of Insteon Hub running firmware version 1012. Specially crafted commands sent through the PubNub service can cause a stack-based buffer overflow overwriting arbitrary data. An attacker should send an authenticated HTTP request to trigger this vulnerability. In cmd s_sun, at 0x9d019854, the value for the `sunset` key is copied using `strcpy` to the buffer at `$sp+0x334`.This buffer is 100 bytes large, sending anything longer will cause a buffer overflow.

  • LOW
  • HIGH
  • NONE
  • LOW
  • HIGH
  • HIGH

CWE-121 - Stack-based Buffer Overflow

A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).


Advisory Timeline

  • Published