Authenticated memory corruption via unbounded mib_name formatting
Published Mar 21, 2024 · Updated Aug 1, 2024
Stack-based buffer overflow in formSetCfm in Tenda AC10U 15.03.06.48 allows remote authenticated users to corrupt memory via HTTP. The handler passes attacker-controlled funcpara1 to save_list_data, where sprintf writes a generated name into the 64-byte mib_name array without a length bound. A low-privileged web-management session is required; the public proof of concept demonstrates the overwrite trigger but not code execution.
Summary
What happened
Stack-based buffer overflow in formSetCfm in Tenda AC10U 15.03.06.48 allows remote authenticated users to corrupt memory via HTTP. The handler passes attacker-controlled funcpara1 to save_list_data, where sprintf writes a generated name into the 64-byte mib_name array without a length bound. A low-privileged web-management session is required; the public proof of concept demonstrates the overwrite trigger but not code execution.
The record
- CVE
- CVE-2024-2763
- Published
- Mar 21, 2024
- Updated
- Aug 1, 2024
- Vendor
- Shenzhen Tenda Technology Co., Ltd.
- Product
- AC10U
- Classifications
- CWE-121, CWE-787, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 21, 2024CVE publishedPublication date reported by the CVE source.
- Aug 1, 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?
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- Affected versionversion=15.03.06.48
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
- Oversized funcpara1 POST proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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