Authenticated memory corruption via oversized ssidIndex
Published Apr 27, 2024 · Updated Aug 1, 2024
Stack-based buffer overflow in Tenda i21 1.0.0.14(4656) allows remote authenticated users to corrupt memory via ssidIndex input. The formQosManage_auto function accepts an oversized ssidIndex value and writes beyond a stack buffer, although the exact copy operation is undisclosed. Low-privileged network access is required, and the published evidence establishes memory corruption without demonstrating a specific post-overflow result.
Summary
What happened
Stack-based buffer overflow in Tenda i21 1.0.0.14(4656) allows remote authenticated users to corrupt memory via ssidIndex input. The formQosManage_auto function accepts an oversized ssidIndex value and writes beyond a stack buffer, although the exact copy operation is undisclosed. Low-privileged network access is required, and the published evidence establishes memory corruption without demonstrating a specific post-overflow result.
The record
- CVE
- CVE-2024-4247
- Published
- Apr 27, 2024
- Updated
- Aug 1, 2024
- Vendor
- Shenzhen Tenda Technology Co., Ltd.
- Product
- i21
- Classifications
- CWE-121, T1210
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 27, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.0.0.14(4656)
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.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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