CVE-2021-20091: Code Injection
First published: Thu Apr 29 2021(Updated: )
The web interfaces of Buffalo WSR-2533DHPL2 firmware version <= 1.02 and WSR-2533DHP3 firmware version <= 1.24 do not properly sanitize user input. An authenticated remote attacker could leverage this vulnerability to alter device configuration, potentially gaining remote code execution.
Credit: vulnreport@tenable.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Arcadyan Buffalo Firmware | <=1.02 | |
| Buffalo Wsr-2533dhpl2 | ||
| Buffalo Wsr-2533dhp3-bk Firmware | <=1.24 | |
| Buffalo WSR-2533DHP3-BK |
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Reference Links
Frequently Asked Questions
What is CVE-2021-20091?
CVE-2021-20091 is a vulnerability in Buffalo WSR-2533DHPL2 firmware version <= 1.02 and WSR-2533DHP3 firmware version <= 1.24 that allows an authenticated remote attacker to alter device configuration and potentially gain remote code execution.
How does CVE-2021-20091 affect Buffalo WSR-2533DHPL2 firmware?
CVE-2021-20091 affects Buffalo WSR-2533DHPL2 firmware version <= 1.02 by not properly sanitizing user input, which can be exploited by an authenticated remote attacker to alter device configuration and potentially achieve remote code execution.
How does CVE-2021-20091 impact Buffalo WSR-2533DHP3 firmware?
CVE-2021-20091 impacts Buffalo WSR-2533DHP3 firmware version <= 1.24 by not properly sanitizing user input, allowing an authenticated remote attacker to manipulate device configuration and potentially execute code remotely.
What is the severity of CVE-2021-20091?
CVE-2021-20091 has a severity rating of 8.8 (high).
How can I mitigate CVE-2021-20091?
To mitigate CVE-2021-20091, update Buffalo WSR-2533DHPL2 firmware to version 1.03 or later, and update Buffalo WSR-2533DHP3 firmware to version 1.25 or later.
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/references
- agent/last-modified-date
- agent/weakness
- agent/author
- agent/first-publish-date
- agent/description
- agent/event
- agent/source
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/buffalo
- canonical/arcadyan buffalo firmware
- version/arcadyan buffalo firmware/1.02
- canonical/buffalo wsr-2533dhpl2
- canonical/buffalo wsr-2533dhp3-bk firmware
- version/buffalo wsr-2533dhp3-bk firmware/1.24
- canonical/buffalo wsr-2533dhp3-bk