Unauthenticated RCE via Host header overflow
Published Jan 7, 2020 · Updated Aug 5, 2024
Buffer overflow in TP-Link TL-WR841N before 0.9.1 4.16 v007c.0 Build 180613 Rel.42415n allows remote attackers to execute arbitrary code via HTTP. The web service copies an unchecked Host request header into a fixed-length static buffer, enabling code execution in the admin context without authentication; exploitation requires network access to the management service and can compromise confidentiality, integrity, and availability.
Summary
What happened
Buffer overflow in TP-Link TL-WR841N before 0.9.1 4.16 v007c.0 Build 180613 Rel.42415n allows remote attackers to execute arbitrary code via HTTP. The web service copies an unchecked Host request header into a fixed-length static buffer, enabling code execution in the admin context without authentication; exploitation requires network access to the management service and can compromise confidentiality, integrity, and availability.
The record
- CVE
- CVE-2019-17147
- Published
- Jan 7, 2020
- Updated
- Aug 5, 2024
- Vendor
- TP-Link
- Product
- TL-WR841N
- Classifications
- CWE-120, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 7, 2020CVE publishedPublication date reported by the CVE source.
- Aug 5, 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?
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- Affected versionversion=0.9.1 4.16 v007c.0 Build 180613 Rel.42415n
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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