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CVE-2020-3381

HIGHCVSS 8.8/10EPSS 2.64%

Last modified

CVE-2020-3381 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A vulnerability in the web management interface of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to conduct directory traversal attacks and obtain read and write access to sensitive files on a targeted system. The vulnerability is due to a lack of proper validation of files that are uploaded to an affected device. EPSS estimates a 2.64% chance of exploitation in the next 30 days.

Description

A vulnerability in the web management interface of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to conduct directory traversal attacks and obtain read and write access to sensitive files on a targeted system. The vulnerability is due to a lack of proper validation of files that are uploaded to an affected device. An attacker could exploit this vulnerability by uploading a crafted file to an affected system. An exploit could allow the attacker to view or modify arbitrary files on the targeted system.

Metrics

CVSS 3.1
8.8/10

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

EPSS Probability
2.64%

83.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoSd-Wan Firmware<= 18.3.0
CiscoSd-Wan Firmware>= 18.4.0, < 19.2.3
CiscoSd-Wan Firmware>= 19.3.0, <= 20.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-3381?
A vulnerability in the web management interface of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to conduct directory traversal attacks and obtain read and write access to sensitive files on a targeted system. The vulnerability is due to a lack of proper validation of files that are uploaded to an affected device. An attacker could exploit this vulnerability by uploading a crafted file to an affected system. An exploit could allow the attacker to view or modify arbitrary files on the targeted system.
How severe is CVE-2020-3381?
CVE-2020-3381 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 2.64% probability of exploitation in the next 30 days.
How do I fix CVE-2020-3381?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-3381?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST