| Título | Tomato by Shibby Tomato Firmware 1.28 Stack-based Buffer Overflow |
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| Descripción | multimon.cgi renders APC UPS monitoring data by connecting to configured UPS hosts and parsing the returned text fields into caller-supplied stack buffers.
The parsing helper sub_90F0 contains two unsafe write paths:
0x9174: newline-terminated byte-copy loop that does not enforce the caller-provided length
0x91d4: sscanf("%*s %*s %s", a3) with an unbounded %s
Representative call sites include:
0x98b0: sub_90F0(..., "upstemp", ..., 0x40)
0xa24c: sub_90F0(..., "date", ..., 0x100)
An attacker-controlled UPS response field longer than the destination stack buffer causes memory corruption beyond the intended boundary. |
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| Fuente | ⚠️ https://gitee.com/Fengyi-Wang/CVE/issues/IJK7BE |
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| Usuario | Cormac315 (UID 97273) |
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| Sumisión | 2026-05-02 16:14 (hace 1 mes) |
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| Moderación | 2026-05-29 10:33 (27 days later) |
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| Estado | Aceptado |
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| Entrada de VulDB | 367153 [Shibby Tomato 1.28 multimon.cgi sub_90F0 desbordamiento de búfer] |
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| Puntos | 20 |
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