| Titel | Totolink A8000RU 7.1cu.643_b20200521 Command Injection |
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| Beschreibung | A pre‑authentication OS command injection vulnerability exists in the `setL2tpServerCfg` functionality exposed via the web management interface (`/cgi-bin/cstecgi.cgi`) of the TOTOLINK A8000RU 7.1cu.643_b20200521 router.
The CGI handler retrieves user‑controlled input from the HTTP parameter `lanIp`, embeds it directly into a shell command string using `sprintf`, and executes it via `CsteSystem()` without any sanitization or escaping. As a result, a remote attacker with network access to the web interface can inject arbitrary shell commands and execute them with root privileges on the device, without authentication. |
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| Quelle | ⚠️ https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_358/README.md |
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| Benutzer | LtzHuster2 (UID 96397) |
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| Einreichung | 27.04.2026 08:04 (vor 1 Monat) |
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| Moderieren | 25.05.2026 16:27 (28 days later) |
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| Status | Duplikat |
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| VulDB Eintrag | 365417 [Totolink A8000RU 7.1cu.643_b20200521 Web Management Interface /cgi-bin/cstecgi.cgi setL2tpServerCfg enable erweiterte Rechte] |
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| Punkte | 0 |
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