| 标题 | Tenda i12 V1.0.0.11(3862) Path Traversal |
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| 描述 | A critical authentication bypass vulnerability exists in the Tenda i12 V1.0.0.11(3862) router, specifically within the R7WebsSecurityHandlerfunction of the V1.0.0.11(3862) firmware. This function acts as a security gatekeeper for all incoming HTTP requests. Its primary mechanism is a URL prefix whitelist (e.g., /public/, /lang/) meant to grant unauthenticated access to static resources. The function uses strncmp to check if the request URL begins with these trusted prefixes: e.g., if ( !strncmp(s1, "/public/", 8u) ... return 0;However, the application fails to validate or canonicalize the subsequent part of the URL. An unauthenticated remote attacker can send a crafted HTTP request that starts with a whitelisted prefix but employs directory traversal sequences (../) to escape the restricted directory.For example, a request to /public/../system_upgrade.asp will satisfy the strncmp check (bypassing authentication) but will be resolved by the web server to the sensitive system_upgrade.asp page, granting full administrative access. |
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| 来源 | ⚠️ https://github.com/Litengzheng/vuldb_new/blob/main/i12/vul_110/README.md |
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| 用户 | LtzHust2 (UID 95662) |
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| 提交 | 2026-03-27 16時12分 (6 月前) |
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| 管理 | 2026-04-08 21時15分 (12 days later) |
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| 状态 | 已接受 |
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| VulDB条目 | 356375 [Tenda i12 1.0.0.11(3862) HTTP 目录遍历] |
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| 积分 | 20 |
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