| 标题 | Tomato by Shibby Tomato Firmware 1.28 Out-of-Bounds Read |
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| 描述 | An information disclosure vulnerability exists in usr/sbin/miniupnpd in Tomato by Shibby firmware. In the SUBSCRIBE callback handling path, the daemon stores an attacker-controlled callback URI and later constructs the initial NOTIFY request in a fixed 0x400-byte heap buffer. The code uses the return value of snprintf() as the transmit length without checking whether the formatted length exceeded the allocated buffer size. As a result, a sufficiently long callback path can cause send() to transmit bytes beyond the intended 0x400-byte buffer, disclosing unintended heap memory and adjacent message data to the subscribing client.
The current evidence supports LAN-side unauthenticated information disclosure. The callback host is constrained to the requester's own IPv4 address, so the supported impact is memory disclosure back to the subscriber-controlled listener, not arbitrary SSRF. |
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| 来源 | ⚠️ https://gitee.com/Fengyi-Wang/CVE/issues/IJD8SS |
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| 用户 | Anonymous User |
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| 提交 | 2026-05-02 18時41分 (1 月前) |
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| 管理 | 2026-05-29 10時33分 (27 days later) |
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| 状态 | 已接受 |
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| VulDB条目 | 367154 [Shibby Tomato 1.28 SUBSCRIBE Call usr/sbin/miniupnpd send 权限提升] |
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| 积分 | 20 |
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