SB2021042201 - Multiple vulnerabilities in Cisco SD-WAN vManage

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Main Vulnerability Database SB2021042201

SB2021042201 - Multiple vulnerabilities in Cisco SD-WAN vManage

Published: April 22, 2021

Security Bulletin ID SB2021042201
Severity
Medium
Patch available
YES
Number of vulnerabilities 5
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Medium 80% Low 20%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 5 secuirty vulnerabilities.


1) Link following (CVE-ID: CVE-2021-1491)

The vulnerability allows a remote attacker to gain access to sensitive information on the system.

The vulnerability exists due to insufficient file scope limiting. A remote authenticated attacker can create a specific file reference on the file system, access it through the web-based management interface and read arbitrary files from the file system of the underlying operating system.


2) Improper Neutralization of Special Elements in Data Query Logic (CVE-ID: CVE-2021-1481)

The vulnerability allows a remote attacker to perform a Cypher query language injection attack.

The vulnerability exists due to insufficient input validation by the web-based management interface. A remote authenticated attacker can send specially crafted HTTP requests and obtain sensitive information.


3) Improper Authorization (CVE-ID: CVE-2021-1482)

The vulnerability allows a remote attacker to bypass authorization checks.

The vulnerability exists due to insufficient authorization checks. A remote authenticated attacker can send specially crafted HTTP requests to bypass authorization checking and gain access to sensitive information on the affected system.


4) XML External Entity injection (CVE-ID: CVE-2021-1483)

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to insufficient validation of user-supplied XML input in the web UI. A remote authenticated attacker can pass a specially crafted XML code to the affected application and view contents of arbitrary files on the system or initiate requests to external systems.

Successful exploitation of the vulnerability may allow an attacker to view contents of arbitrary file on the server or perform network scanning of internal and external infrastructure.


5) Improper Neutralization of Argument Delimiters in a Command (CVE-ID: CVE-2021-1484)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation in the the device template configuration. A remote authenticated attacker can inject arbitrary commands and cause a denial of service condition on the target system.


Remediation

Install update from vendor's website.

References