Authenticated memory corruption via unbounded list copy
Published Mar 20, 2024 · Updated Aug 1, 2024
Stack-based buffer overflow in Tenda AC10U 1.0 firmware 15.03.06.49 allows remote authenticated users to corrupt memory via an HTTP POST. formSetQosBand passes the attacker-controlled list parameter to setQosMiblist, where strcpy copies it without a length check into the 256-byte qos_str stack buffer. Access to the management handler requires authentication; the published 2,000-byte proof of concept shows the trigger but reports neither code execution nor a measured crash.
Summary
What happened
Stack-based buffer overflow in Tenda AC10U 1.0 firmware 15.03.06.49 allows remote authenticated users to corrupt memory via an HTTP POST. formSetQosBand passes the attacker-controlled list parameter to setQosMiblist, where strcpy copies it without a length check into the 256-byte qos_str stack buffer. Access to the management handler requires authentication; the published 2,000-byte proof of concept shows the trigger but reports neither code execution nor a measured crash.
The record
- CVE
- CVE-2024-2705
- Published
- Mar 20, 2024
- Updated
- Aug 1, 2024
- Vendor
- Shenzhen Tenda Technology Co., Ltd.
- Product
- AC10U
- Classifications
- CWE-787, CWE-121, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 20, 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
- Affected versionversion=15.03.06.49
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
- formSetQosBand oversized-list HTTP proof of conceptproof 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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