Authenticated memory corruption via unchecked firewallEn copy
Published Mar 20, 2024 · Updated Aug 12, 2024
Stack-based buffer overflow in Tenda AC10U firmware 15.03.06.49 allows remote authenticated users to corrupt memory via firewallEn. The formSetFirewallCfg handler copies the attacker-controlled value into an eight-byte stack buffer with strcpy and no length check. A logged-in management session is required; the published proof of concept demonstrates the overwrite trigger but not code execution.
Summary
What happened
Stack-based buffer overflow in Tenda AC10U firmware 15.03.06.49 allows remote authenticated users to corrupt memory via firewallEn. The formSetFirewallCfg handler copies the attacker-controlled value into an eight-byte stack buffer with strcpy and no length check. A logged-in management session is required; the published proof of concept demonstrates the overwrite trigger but not code execution.
The record
- CVE
- CVE-2024-2704
- Published
- Mar 20, 2024
- Updated
- Aug 12, 2024
- Vendor
- Shenzhen Tenda Technology Co., Ltd.
- Product
- AC10U
- Classifications
- CWE-121, CWE-787, T1210
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 20, 2024CVE publishedPublication date reported by the CVE source.
- Aug 12, 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=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
- formSetFirewallCfg oversized firewallEn 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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