CVE-2020-3372: Cisco SD-WAN vManage Software Denial of Service Vulnerability
First published: Wed Jul 15 2020(Updated: )
A vulnerability in the web-based management interface of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to consume excessive system memory and cause a denial of service (DoS) condition on an affected system. The vulnerability is due to inefficient memory management. An attacker could exploit this vulnerability by sending a large number of crafted HTTP requests to the affected web-based management interface. A successful exploit could allow the attacker to exhaust system memory, which could cause the system to stop processing new connections and could result in a DoS condition.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Sd-wan Firmware | <19.2.3 | |
| Cisco Sd-wan Firmware | >=20.1.0<20.1.12 | |
| Cisco 1100-4g Integrated Services Router | ||
| Cisco 1100-4gltegb Integrated Services Router | ||
| Cisco 1100-4gltena Integrated Services Router | ||
| Cisco 1100-6g Integrated Services Router | ||
| Cisco Vedge 100 | ||
| Cisco Vedge 1000 | ||
| Cisco Vedge 100b | ||
| Cisco Vedge 100m | ||
| Cisco Vedge 100wm | ||
| Cisco Vedge 2000 | ||
| Cisco Vedge 5000 |
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Reference Links
Frequently Asked Questions
What is CVE-2020-3372?
CVE-2020-3372 is a vulnerability in the web-based management interface of Cisco SD-WAN vManage Software that could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected system.
How does CVE-2020-3372 affect Cisco SD-WAN vManage Software?
CVE-2020-3372 affects the web-based management interface of Cisco SD-WAN vManage Software and can be exploited by an authenticated, remote attacker to consume excessive system memory and cause a DoS condition.
What is the severity of CVE-2020-3372?
CVE-2020-3372 has a severity rating of 6.5 (Medium).
How can I fix CVE-2020-3372?
To fix CVE-2020-3372, Cisco recommends upgrading to a fixed software release.
Where can I find more information about CVE-2020-3372?
More information about CVE-2020-3372 can be found on the Cisco Security Advisory at https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-emvman-3y6LuTcZ.
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- vendor/cisco
- canonical/cisco sd-wan firmware
- version/cisco sd-wan firmware/20.1.0
- canonical/cisco 1100-4g integrated services router
- canonical/cisco 1100-4gltegb integrated services router
- canonical/cisco 1100-4gltena integrated services router
- canonical/cisco 1100-6g integrated services router
- canonical/cisco vedge 100
- canonical/cisco vedge 1000
- canonical/cisco vedge 100b
- canonical/cisco vedge 100m
- canonical/cisco vedge 100wm
- canonical/cisco vedge 2000
- canonical/cisco vedge 5000