Authenticated router compromise via funcpara1 stack overflow
Published May 10, 2024 · Updated Feb 13, 2025
Stack-based buffer overflow in Tenda FH1206 1.2.0.8(8155)_EN allows remote authenticated users to compromise the router via funcpara1. The ip/goform/exeCommand handler accepts funcpara1, but the public record does not disclose the copying operation, destination buffer, or missing length check that overwrites the stack. Network access and a valid low-privilege session are required; successful exploitation grants control of router process memory or interrupts service.
Summary
What happened
Stack-based buffer overflow in Tenda FH1206 1.2.0.8(8155)_EN allows remote authenticated users to compromise the router via funcpara1. The ip/goform/exeCommand handler accepts funcpara1, but the public record does not disclose the copying operation, destination buffer, or missing length check that overwrites the stack. Network access and a valid low-privilege session are required; successful exploitation grants control of router process memory or interrupts service.
The record
- CVE
- CVE-2024-34942
- Published
- May 10, 2024
- Updated
- Feb 13, 2025
- Vendor
- Shenzhen Tenda Technology Co., Ltd.
- Product
- FH1206
- Classifications
- CWE-121
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- May 10, 2024CVE publishedPublication date reported by the CVE source.
- Feb 13, 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=1.2.0.8\(8155\)_en
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
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
- formexeCommand proof-of-concept disclosureproof 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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