CVE-2020-3369

EUVD-2020-24640

16.07.2020, 18:15

A vulnerability in the deep packet inspection (DPI) engine of Cisco SD-WAN vEdge Routers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper processing of FTP traffic. An attacker could exploit this vulnerability by sending crafted FTP packets through an affected device. A successful exploit could allow the attacker to make the device reboot continuously, causing a DoS condition.

Range Error

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	7.5 HIGH	NETWORK	LOW	NONE	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
cisco	CNA	8.6 HIGH	NETWORK	LOW	NONE	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Base Score

CVSS 3.x

EPSS Score

Percentile: 78%

Affected Products (NVD)

Vendor	Product	Version
cisco	sd-wan_firmware	19.2.0
cisco	sd-wan_firmware	19.2.1
cisco	sd-wan_firmware	19.2.097
cisco	sd-wan_firmware	19.2.098
cisco	vedge_cloud_router	-

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= Vulnerable software versions

Common Weakness Enumeration

CWE-118 - Incorrect Access of Indexable Resource ('Range Error')
The software does not restrict or incorrectly restricts operations within the boundaries of a resource that is accessed using an index or pointer, such as memory or files.

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fpdos-hORBfd9f