CVE-2021-34702: Cisco Identity Services Engine Sensitive Information Disclosure Vulnerability

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-10-06 · updated 2026-06-17
Weakness: CWE-200

Description

A vulnerability in the web-based management interface of Cisco Identity Services Engine (ISE) could allow an authenticated, remote attacker to obtain sensitive information. This vulnerability is due to improper enforcement of administrator privilege levels for low-value sensitive data. An attacker with read-only administrator access to the web-based management interface could exploit this vulnerability by browsing to the page that contains the sensitive data. A successful exploit could allow the attacker to collect sensitive information regarding the configuration of the system.

Affected products

Cisco Identity Services Engine: from 2.2.0 before 2.6.0; 2.6.0, 2.6.0-patch1, 2.6.0-patch10, 2.6.0-patch2, 2.6.0-patch3, 2.6.0-patch5 (+13) — fixed in 2.6.0

How to fix

Upgrade to a fixed version: Cisco Identity Services Engine 2.6.0. Check the vendor advisory for mitigations.

References

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