Authenticated root code execution via malformed HTTP input
Published Jan 13, 2021 · Updated Nov 12, 2024
Stack-based buffer overflows in Cisco Small Business RV110W, RV130, RV130W, and RV215W routers allow remote authenticated users to execute root code. The web management interface improperly validates fields in crafted HTTP requests, allowing attacker-controlled input to overflow stack buffers. Valid administrator credentials and LAN access, or WAN access when remote management is enabled, are required; exploitation executes code as root or reloads the device.
Summary
What happened
Stack-based buffer overflows in Cisco Small Business RV110W, RV130, RV130W, and RV215W routers allow remote authenticated users to execute root code. The web management interface improperly validates fields in crafted HTTP requests, allowing attacker-controlled input to overflow stack buffers. Valid administrator credentials and LAN access, or WAN access when remote management is enabled, are required; exploitation executes code as root or reloads the device.
The record
- CVE
- CVE-2021-1217
- Published
- Jan 13, 2021
- Updated
- Nov 12, 2024
- Vendor
- ClamAV
- Product
- Cisco Small Business RV Series Router Firmware
- Classifications
- CWE-121, T1190
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Jan 13, 2021CVE publishedPublication date reported by the CVE source.
- Nov 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?
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- Affected versionversion=n/a
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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