Unauthenticated command execution via telnet handler
Published Aug 15, 2024 · Updated Mar 25, 2025
OS command injection in Tenda FH1206 02.03.01.35 allows remote attackers to execute arbitrary commands through /goform/telnet. The handler forwards request-controlled input to a shell without neutralizing shell metacharacters. The management interface must be network reachable; no credentials or user interaction are required, and exploitation grants command execution on the router.
Summary
What happened
OS command injection in Tenda FH1206 02.03.01.35 allows remote attackers to execute arbitrary commands through /goform/telnet. The handler forwards request-controlled input to a shell without neutralizing shell metacharacters. The management interface must be network reachable; no credentials or user interaction are required, and exploitation grants command execution on the router.
The record
- CVE
- CVE-2024-42978
- Published
- Aug 15, 2024
- Updated
- Mar 25, 2025
- Vendor
- Shenzhen Tenda Technology Co., Ltd.
- Product
- FH1206
- Classifications
- CWE-78, T1059
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 15, 2024CVE publishedPublication date reported by the CVE source.
- Mar 25, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=02.03.01.35
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- FH1206 /goform/telnet proof of conceptproof of concept · unverified
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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