CVE-2020-3387 — HIGH (8.8) — White Hats Nepal

Q: How severe is CVE-2020-3387?

CVE-2020-3387 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2020-3387?

Check the references section above for vendor advisories and patch information. Affected products include: Cisco Sd-Wan Firmware, Cisco 1100-4G Integrated Services Router, Cisco 1100-4Gltegb Integrated Services Router, Cisco 1100-4Gltena Integrated Services Router, Cisco 1100-6G Integrated Services Router.

Vulnerability Description

A vulnerability in Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to execute code with root privileges on an affected system. The vulnerability is due to insufficient input sanitization during user authentication processing. An attacker could exploit this vulnerability by sending a crafted response to the Cisco SD-WAN vManage Software. A successful exploit could allow the attacker to access the software and execute commands they should not be authorized to execute.

CVSS Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Cisco	Sd-Wan Firmware	<= 18.3.0
Cisco	1100-4G Integrated Services Router	-
Cisco	1100-4Gltegb Integrated Services Router	-
Cisco	1100-4Gltena Integrated Services Router	-
Cisco	1100-6G Integrated Services Router	-

Related Weaknesses (CWE)

CWE-20

References

http://packetstormsecurity.com/files/162958/Cisco-SD-WAN-vManage-19.2.2-Remote-RExploitThird Party AdvisoryVDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vVendor Advisory
http://packetstormsecurity.com/files/162958/Cisco-SD-WAN-vManage-19.2.2-Remote-RExploitThird Party AdvisoryVDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vVendor Advisory

FAQ

What is CVE-2020-3387?

CVE-2020-3387 is a vulnerability with a CVSS score of 8.8 (HIGH). A vulnerability in Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to execute code with root privileges on an affected system. The vulnerability is due to insufficient inpu...

How severe is CVE-2020-3387?

CVE-2020-3387 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-3387?

Check the references section above for vendor advisories and patch information. Affected products include: Cisco Sd-Wan Firmware, Cisco 1100-4G Integrated Services Router, Cisco 1100-4Gltegb Integrated Services Router, Cisco 1100-4Gltena Integrated Services Router, Cisco 1100-6G Integrated Services Router.