Authenticated memory corruption via unchecked schedStartTime copy
Published Jan 16, 2025 · Updated Feb 3, 2025
A stack-based buffer overflow in Tenda AC8v4 firmware 16.03.34.06 allows remote authenticated users to corrupt process memory. The setSchedWifi function passes the POST-controlled schedStartTime value to strcpy without bounding it to the 25-byte destination at ptr+2. Access to the router's scheduling form is required; the published proof of concept demonstrates the overwrite trigger but not code execution.
Summary
What happened
A stack-based buffer overflow in Tenda AC8v4 firmware 16.03.34.06 allows remote authenticated users to corrupt process memory. The setSchedWifi function passes the POST-controlled schedStartTime value to strcpy without bounding it to the 25-byte destination at ptr+2. Access to the router's scheduling form is required; the published proof of concept demonstrates the overwrite trigger but not code execution.
The record
- CVE
- CVE-2024-57704
- Published
- Jan 16, 2025
- Updated
- Feb 3, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-787
- Attack vector
- adjacent
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 16, 2025CVE publishedPublication date reported by the CVE source.
- Feb 3, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
- Oversized schedStartTime POST proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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