CVE-2020-3294: Cisco Small Business RV Series Routers Stack Overflow Arbitrary Code Execution Vulnerabilities
First published: Thu Jun 18 2020(Updated: )
Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV320 and RV325 Series Routers and Cisco Small Business RV016, RV042, and RV082 Routers could allow an authenticated, remote attacker with administrative privileges to execute arbitrary code on an affected device. The vulnerabilities are due to insufficient boundary restrictions on user-supplied input to scripts in the web-based management interface. An attacker with administrative privileges that are sufficient to log in to the web-based management interface could exploit each vulnerability by sending crafted requests that contain overly large values to an affected device, causing a stack overflow. A successful exploit could allow the attacker to cause the device to crash or allow the attacker to execute arbitrary code with root privileges on the underlying operating system.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Rv016 Firmware | <=4.2.3.10 | |
| Cisco Rv016 | ||
| Cisco Rv042 Firmware | <=4.2.3.10 | |
| Cisco Rv042 | ||
| Cisco Rv042g Firmware | <=4.2.3.10 | |
| Cisco Rv042g | ||
| Cisco Rv082 Firmware | <=4.2.3.10 | |
| Cisco Rv082 | ||
| Cisco Rv320 Firmware | <=1.5.1.05 | |
| Cisco RV320 | ||
| Cisco Rv325 Firmware | <=1.5.1.05 | |
| Cisco RV325 |
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Reference Links
Frequently Asked Questions
What is CVE-2020-3294?
CVE-2020-3294 is a vulnerability in the web-based management interface of Cisco Small Business RV320 and RV325 Series Routers and Cisco Small Business RV016, RV042, and RV082 Routers.
How severe is CVE-2020-3294?
CVE-2020-3294 has a severity rating of 7.2 (critical).
What is the impact of CVE-2020-3294?
An authenticated, remote attacker with administrative privileges could execute arbitrary code on an affected device.
How can I fix CVE-2020-3294?
Cisco has released firmware updates to address the vulnerabilities. Please refer to the Cisco Security Advisory for the specific firmware versions and instructions.
Where can I find more information about CVE-2020-3294?
You can find more information about CVE-2020-3294 in the Cisco Security Advisory at the following link: [Cisco Security Advisory](https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-routers-stack-vUxHmnNz)
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- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/weakness
- agent/last-modified-date
- agent/severity
- agent/references
- agent/author
- agent/title
- agent/description
- agent/tags
- agent/first-publish-date
- agent/event
- vendor/cisco
- canonical/cisco rv016 firmware
- version/cisco rv016 firmware/4.2.3.10
- canonical/cisco rv016
- canonical/cisco rv042 firmware
- version/cisco rv042 firmware/4.2.3.10
- canonical/cisco rv042
- canonical/cisco rv042g firmware
- version/cisco rv042g firmware/4.2.3.10
- canonical/cisco rv042g
- canonical/cisco rv082 firmware
- version/cisco rv082 firmware/4.2.3.10
- canonical/cisco rv082
- canonical/cisco rv320 firmware
- version/cisco rv320 firmware/1.5.1.05
- canonical/cisco rv320
- canonical/cisco rv325 firmware
- version/cisco rv325 firmware/1.5.1.05
- canonical/cisco rv325