Submit #904109: TOTOLINK X18 (AX1800 Dual Band WiFi6 Gigabit Router, model C834JR) V9.1.0cu.2024_B20220329 Command Injectioninfo

TitleTOTOLINK X18 (AX1800 Dual Band WiFi6 Gigabit Router, model C834JR) V9.1.0cu.2024_B20220329 Command Injection
DescriptionThe TOTOLINK X18 router running firmware V9.1.0cu.2024_B20220329 is susceptible to a command injection flaw in the setSyslogCfg interface located within /web/cgi-bin/cstecgi.cgi. The vulnerability arises from a complete absence of sanitization of the rtLogServer parameter, which is concatenated into a shell command and executed via CsteSystem() (a wrapper around system()). The value is neither escaped nor screened, so ordinary shell metacharacters such as ; are sufficient.
Source⚠️ https://github.com/moiz-2x/no-brain/blob/main/01_setSyslogCfg.md
User QuangDuy (UID 100061)
Submission07/24/2026 10:36 (2 months ago)
Moderation09/06/2026 14:09 (1 month later)
StatusDuplicate
VulDB entry226032 [TOTOLINK X18 9.1.0cu.2024_B20220329 setSyslogCfg rtLogEnabled/rtLogServer command injection]
Points0

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