critical
9
CWE
787 119
Advisory Published
Updated

CVE-2020-3293: 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 SoftwareAffected VersionHow 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 the vulnerability ID?

    The vulnerability ID is CVE-2020-3293.

  • What is the severity of CVE-2020-3293?

    The severity of CVE-2020-3293 is critical.

  • Which Cisco devices are affected by CVE-2020-3293?

    Cisco Small Business RV320, RV325, RV016, RV042, and RV082 routers are affected by CVE-2020-3293.

  • What is the impact of CVE-2020-3293?

    An authenticated, remote attacker with administrative privileges can execute arbitrary code on the affected device.

  • How do I fix CVE-2020-3293?

    Cisco has released firmware updates to address this vulnerability. Please refer to the Cisco Security Advisory for specific details and instructions.

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