Authenticated router crash via L2TP mask overflow
Published Dec 4, 2024 · Updated Dec 4, 2024
Stack-based buffer overflow in Tenda AC6V2 firmware through 15.03.06.50 allows remote authenticated users to crash the router. The setDoubleL2tpConfig handler supplies an untrusted mask argument to guest_ip_check, which overruns a stack buffer. Low-privileged access to the network management path is required, and the documented consequence is loss of availability rather than data access or modification.
Summary
What happened
Stack-based buffer overflow in Tenda AC6V2 firmware through 15.03.06.50 allows remote authenticated users to crash the router. The setDoubleL2tpConfig handler supplies an untrusted mask argument to guest_ip_check, which overruns a stack buffer. Low-privileged access to the network management path is required, and the documented consequence is loss of availability rather than data access or modification.
The record
- CVE
- CVE-2024-52274
- Published
- Dec 4, 2024
- Updated
- Dec 4, 2024
- Vendor
- Shenzhen Tenda Technology Co., Ltd.
- Product
- AC6
- Classifications
- CWE-787, CWE-121, CAPEC-100, T1499.004
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 4, 2024CVE publishedPublication date reported by the CVE source.
- Dec 4, 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=0 <=15.03.06.50
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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