Cudy TR3000 before 2.5.42 contains an option injection vulnerability that allows authenticated administrators to inject arbitrary pppd options by embedding quotes and newlines in L2TP credentials. Attackers can submit crafted usernames or passwords to the net.set_wan RPC method, which l2tp.sh writes into a pppd options file, adding options like logfile to the root pppd process.
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History
Fri, 13 Nov 2026 15:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Cudy TR3000 before 2.5.42 contains an option injection vulnerability that allows authenticated administrators to inject arbitrary pppd options by embedding quotes and newlines in L2TP credentials. Attackers can submit crafted usernames or passwords to the net.set_wan RPC method, which l2tp.sh writes into a pppd options file, adding options like logfile to the root pppd process. | |
| Title | Cudy TR3000 before 2.5.42 pppd Option Injection via net.set_wan L2TP Credentials | |
| Weaknesses | CWE-93 | |
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| Metrics |
cvssV3_1
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MITRE
Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-11-13T15:38:28.271Z
Reserved: 2026-11-13T15:31:00.207Z
Link: CVE-2026-129105
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