CVE-2020-3374: Cisco SD-WAN vManage Software Authorization Bypass Vulnerability
First published: Fri Jul 31 2020(Updated: )
A vulnerability in the web-based management interface of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to bypass authorization, enabling them to access sensitive information, modify the system configuration, or impact the availability of the affected system. The vulnerability is due to insufficient authorization checking on the affected system. An attacker could exploit this vulnerability by sending crafted HTTP requests to the web-based management interface of an affected system. A successful exploit could allow the attacker to gain privileges beyond what would normally be authorized for their configured user authorization level. The attacker may be able to access sensitive information, modify the system configuration, or impact the availability of the affected system.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco SD-WAN | <=18.3.0 | |
| Cisco SD-WAN | >=18.4.0<18.4.5 | |
| Cisco SD-WAN | >=19.2.0<19.2.2 | |
| Cisco SD-WAN | >=19.3.0<20.1.1 |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID for this vulnerability?
The vulnerability ID for this vulnerability is CVE-2020-3374.
What is the severity of CVE-2020-3374?
The severity of CVE-2020-3374 is critical with a CVSS score of 9.9.
What is the affected software for CVE-2020-3374?
The affected software for CVE-2020-3374 is Cisco SD-WAN vManage Software versions 18.3.0 up to and including 20.1.1.
What can an attacker do if the vulnerability is exploited?
If the vulnerability is exploited, an authenticated, remote attacker could bypass authorization, gain access to sensitive information, modify system configuration, or impact system availability.
How can I fix CVE-2020-3374?
To fix CVE-2020-3374, it is recommended to update to a fixed version of Cisco SD-WAN vManage Software.
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- canonical/cisco sd-wan
- version/cisco sd-wan/18.3.0
- version/cisco sd-wan/18.4.0
- version/cisco sd-wan/19.2.0
- version/cisco sd-wan/19.3.0