CVE-2021-34706 MEDIUM

CVE-2021-34706: Cisco Identity Services Engine XML External Entity Injection Vulnerability

Vendor Cisco
Product Cisco Identity Services Engine Software
Weakness CWE-611 · XXE
Published October 6, 2021
Last update November 7, 2024

CVSS base score

6.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

A vulnerability in the web-based management interface of Cisco Identity Services Engine (ISE) could allow an authenticated, remote attacker to access sensitive information or conduct a server-side request forgery (SSRF) attack through an affected device. This vulnerability is due to improper handling of XML External Entity (XXE) entries when parsing certain XML files. An attacker could exploit this vulnerability by uploading a crafted XML file that contains references to external entities. A successful exploit could allow the attacker to retrieve files from the local system, resulting in the disclosure of sensitive information, or cause the web application to perform arbitrary HTTP requests on behalf of the attacker.

Key dates

02Disclosure timeline

October 6, 2021 CVE published
November 7, 2024 Record updated