| 标题 | Tenda W20E Enterprise Router V15.11.0.6 Stack-based Buffer Overflow |
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| 描述 | A stack-based buffer overflow vulnerability has been identified in the formSetPortMirror function of the Tenda W20E router. By sending a crafted portMirrorMirroredPorts parameter, an authenticated attacker can overflow a 256-byte stack buffer, leading to a service crash or Remote Code Execution (RCE).
The formSetPortMirror function handles port mirroring configuration. It retrieves the user-controlled parameter portMirrorMirroredPorts and uses sprintf to format it into a fixed-size stack buffer sMibValue (256 bytes).
The lack of bounds checking on pMirroredPorts allows an attacker to provide a string longer than 256 bytes, overwriting the saved Link Register (LR) on the stack. |
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| 来源 | ⚠️ https://github.com/Robots10/IoT_vlu/blob/main/reports/Tenda/formSetPortMirror/portMirrorMirroredPorts.md |
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| 用户 | hacker128 (UID 93883) |
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| 提交 | 2026-05-24 17時22分 (19 日前) |
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| 管理 | 2026-06-07 18時06分 (14 days later) |
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| 状态 | 已接受 |
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| VulDB条目 | 369142 [Tenda W20E 15.11.0.6 /goform/setPortMirror formSetPortMirror portMirrorMirroredPorts 内存损坏] |
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| 积分 | 20 |
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