CVE-2020-3381 : A vulnerability in the web management interface of Cisco SD-WAN vManage Software

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.

Published 2020-07-16 18:15:19

Updated 2023-05-23 13:55:46

Source Cisco Systems, Inc.

View at NVD, CVE.org

Vulnerability category: Directory traversal

Products affected by CVE-2020-3381

Cisco » Sd-wan Firmware
Versions from including (>=) 18.4.0 and before (<) 19.2.3
cpe:2.3:o:cisco:sd-wan_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1100-4g Integrated Services Router » Version: N/A
When used together with: Cisco » 1100-4gltegb Integrated Services Router » Version: N/A
When used together with: Cisco » 1100-4gltena Integrated Services Router » Version: N/A
When used together with: Cisco » 1100-6g Integrated Services Router » Version: N/A
Cisco » Sd-wan Firmware
Versions up to, including, (<=) 18.3.0
cpe:2.3:o:cisco:sd-wan_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1100-4g Integrated Services Router » Version: N/A
When used together with: Cisco » 1100-4gltegb Integrated Services Router » Version: N/A
When used together with: Cisco » 1100-4gltena Integrated Services Router » Version: N/A
When used together with: Cisco » 1100-6g Integrated Services Router » Version: N/A
Cisco » Sd-wan Firmware
Versions from including (>=) 19.3.0 and up to, including, (<=) 20.1
cpe:2.3:o:cisco:sd-wan_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Cisco » 1100-4g Integrated Services Router » Version: N/A
When used together with: Cisco » 1100-4gltegb Integrated Services Router » Version: N/A
When used together with: Cisco » 1100-4gltena Integrated Services Router » Version: N/A
When used together with: Cisco » 1100-6g Integrated Services Router » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2020-3381

EPSS FAQ

0.33%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 71 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-3381

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
6.5	MEDIUM	AV:N/AC:L/Au:S/C:P/I:P/A:P	8.0	6.4	NIST
Access Vector: Network Access Complexity: Low Authentication: Single Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
8.8	HIGH	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	2.8	5.9	Cisco Systems, Inc.
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High
8.8	HIGH	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	2.8	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2020-3381

CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
Assigned by:
- nvd@nist.gov (Primary)
- ykramarz@cisco.com (Secondary)

References for CVE-2020-3381

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vmdirtrav-eFdAxsJg

Cisco SD-WAN vManage Software Directory Traversal Vulnerability
Vendor Advisory

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Vulnerability Details : CVE-2020-3381

Products affected by CVE-2020-3381

Exploit prediction scoring system (EPSS) score for CVE-2020-3381

CVSS scores for CVE-2020-3381

CWE ids for CVE-2020-3381

References for CVE-2020-3381