Root code execution via oversized HTTP Referer
Published May 23, 2024 · Updated Aug 1, 2024
Stack buffer overflow in prog.cgi in D-Link DIR-2640 firmware 1.11B02_BETA02 and earlier allows attackers to execute code as root. The HNAP handler copies an attacker-controlled HTTP Referer into a fixed-length stack buffer without first validating its length. Exploitation requires only network-adjacent access to the lighttpd service on TCP port 80 or 443; no authentication or user interaction is required.
Summary
What happened
Stack buffer overflow in prog.cgi in D-Link DIR-2640 firmware 1.11B02_BETA02 and earlier allows attackers to execute code as root. The HNAP handler copies an attacker-controlled HTTP Referer into a fixed-length stack buffer without first validating its length. Exploitation requires only network-adjacent access to the lighttpd service on TCP port 80 or 443; no authentication or user interaction is required.
The record
- CVE
- CVE-2024-5293
- Published
- May 23, 2024
- Updated
- Aug 1, 2024
- Vendor
- D-Link
- Product
- DIR-2640
- Classifications
- CWE-121, T1210
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 23, 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=1.11B02_BETA02
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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