CVE Vulnerabilities

CVE-2021-34712

Improper Neutralization of Special Elements in Data Query Logic

Published: Sep 23, 2021 | Modified: Nov 21, 2024
CVSS 3.x
6.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS 2.x
4 MEDIUM
AV:N/AC:L/Au:S/C:P/I:N/A:N
RedHat/V2
RedHat/V3
Ubuntu

A vulnerability in the web-based management interface of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to conduct cypher query language injection attacks on an affected system. This vulnerability is due to insufficient input validation by the web-based management interface. An attacker could exploit this vulnerability by sending crafted HTTP requests to the interface of an affected system. A successful exploit could allow the attacker to obtain sensitive information.

Weakness

The product generates a query intended to access or manipulate data in a data store such as a database, but it does not neutralize or incorrectly neutralizes special elements that can modify the intended logic of the query.

Affected Software

Name Vendor Start Version End Version
Catalyst_sd-wan_manager Cisco 20.4 (including) 20.4.2 (including)
Catalyst_sd-wan_manager Cisco 20.5 (including) 20.5 (including)
Catalyst_sd-wan_manager Cisco 20.6 (including) 20.6 (including)
Sd-wan_vmanage Cisco 20.3 (including) 20.3.4 (excluding)

Extended Description

Depending on the capabilities of the query language, an attacker could inject additional logic into the query to:

The ability to execute additional commands or change which entities are returned has obvious risks. But when the product logic depends on the order or number of entities, this can also lead to vulnerabilities. For example, if the query expects to return only one entity that specifies an administrative user, but an attacker can change which entities are returned, this could cause the logic to return information for a regular user and incorrectly assume that the user has administrative privileges. While this weakness is most commonly associated with SQL injection, there are many other query languages that are also subject to injection attacks, including HTSQL, LDAP, DQL, XQuery, Xpath, and “NoSQL” languages.

References