PT-2020-3128 · Cisco · Cisco Sd-Wan Vmanage

Johnny Yu · Published 2020-07-15 · Updated 2022-01-01 · CVE-2020-3437

Positive Technologies (AI Summary)

CVSS v2.0

6.8

Medium

Base vector

AV:N/AC:L/Au:S/C:C/I:N/A:N

Name of the Vulnerable Software and Affected Versions Cisco SD-WAN vManage Software (affected versions not specified)

Description The issue is related to a problem with the web-based management interface of Cisco SD-WAN vManage Software, where an incorrect link resolution before accessing a file can be exploited. This could allow a remote attacker to gain unauthorized access to protected information. The vulnerability is due to insufficient file scope limiting, which can be exploited by creating a specific file reference on the filesystem and accessing it through the web-based management interface. A successful exploit could allow the attacker to read arbitrary files from the filesystem of the underlying operating system.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Link Following

Weakness Enumeration

CWE-59

Related Identifiers

BDU:2020-03420

CVE-2020-3437

Affected Products

Cisco Sd-Wan Vmanage

References · 5

• 🔥 http://packetstormsecurity.com/files/162958/Cisco-SD-WAN-vManage-19.2.2-Remote-Root.html · Exploit
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vmanwebid-5QWMcCvt · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-03420 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-3437 · Security Note
• https://osv.dev/vulnerability/CVE-2020-3437 · Vendor Advisory