| Title | Totolink A3300R 17.0.0cu.557_b20221024 Command Injection |
|---|
| Description |
The vulnerability resides within the router's shttpdservice. It allows a remote attacker to execute arbitrary operating system commands by sending a specially crafted network request. The technical root cause is a command injection flaw in the handling of user input:
The attack vector is a user-supplied parameter named enable.
The program flow reads this parameter in the sub_41458Cfunction and passes it to Uci_Set_Str.
Subsequently, the value of the "enable" parameter is unsafely concatenated into a command string (variable v11) using snprintf.
This crafted command string is then passed to the CsteSystemfunction, where it is ultimately executed by the execv()system call, leading to arbitrary command execution. |
|---|
| Source | ⚠️ https://github.com/LvHongW/Vuln-of-totolink_A3300R/tree/main/A3300R_enable_cmd_inject |
|---|
| User | LvHW (UID 96399) |
|---|
| Submission | 03/13/2026 03:25 (18 days ago) |
|---|
| Moderation | 03/29/2026 19:51 (17 days later) |
|---|
| Status | Accepted |
|---|
| VulDB entry | 354128 [Totolink A3300R 17.0.0cu.557_b20221024 /cgi-bin/cstecgi.cgi setUPnPCfg enable command injection] |
|---|
| Points | 20 |
|---|