Authenticated control-flow hijacking via unchecked sprintf
Published Mar 28, 2024 · Updated Aug 2, 2024
Stack-based buffer overflow in Tenda AC10U Firmware 15.03.06.48 allows remote authenticated users to corrupt process memory via HTTP. The formSetClientState handler passes the deviceId, limitSpeed, and limitSpeedUp POST values to sprintf without a length check, overflowing a stack buffer. Access to the router management interface with valid credentials is required; an overlong value can overwrite the function return address and redirect httpd control flow.
Summary
What happened
Stack-based buffer overflow in Tenda AC10U Firmware 15.03.06.48 allows remote authenticated users to corrupt process memory via HTTP. The formSetClientState handler passes the deviceId, limitSpeed, and limitSpeedUp POST values to sprintf without a length check, overflowing a stack buffer. Access to the router management interface with valid credentials is required; an overlong value can overwrite the function return address and redirect httpd control flow.
The record
- CVE
- CVE-2024-30612
- Published
- Mar 28, 2024
- Updated
- Aug 2, 2024
- Vendor
- Shenzhen Tenda Technology Co., Ltd.
- Product
- Tenda AC10U Firmware
- Classifications
- CWE-121, T1210
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 28, 2024CVE publishedPublication date reported by the CVE source.
- Aug 2, 2024Record 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=15.03.06.48_multi_tde01
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.
Public exploit references
- formSetClientState HTTP proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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