Authenticated code execution via unchecked CGI parameter copies
Published Oct 3, 2024 · Updated Oct 3, 2024
Stack buffer overflows in DrayTek Vigor3910 through 4.3.2.6 allow remote authenticated users to execute code or crash the router. Several Web UI CGI handlers pass attacker-controlled POST parameters to strcpy without checking the destination buffer's bounds. Valid credentials and network access to the management interface are required; successful exploitation corrupts memory, causing denial of service or enabling chained code execution.
Summary
What happened
Stack buffer overflows in DrayTek Vigor3910 through 4.3.2.6 allow remote authenticated users to execute code or crash the router. Several Web UI CGI handlers pass attacker-controlled POST parameters to strcpy without checking the destination buffer's bounds. Valid credentials and network access to the management interface are required; successful exploitation corrupts memory, causing denial of service or enabling chained code execution.
The record
- CVE
- CVE-2024-41590
- Published
- Oct 3, 2024
- Updated
- Oct 3, 2024
- Vendor
- DrayTek
- Product
- Vigor3910
- Classifications
- CWE-121, T1210
- Attack vector
- adjacent
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 3, 2024CVE publishedPublication date reported by the CVE source.
- Oct 3, 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 <=4.3.2.6
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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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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