VIR Vulnerability Intelligence Relay

CVE-2017-6747

critical
Published 2017-08-07 · Modified 2026-05-13
💬 Discuss on Community ✚ Propose mitigation
CVSS v3
9.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4 NEW
—
not yet in upstream
VIR risk
9.8

Description

A vulnerability in the authentication module of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to bypass local authentication. The vulnerability is due to improper handling of authentication requests and policy assignment for externally authenticated users. An attacker could exploit this vulnerability by authenticating with a valid external user account that matches an internal username and incorrectly receiving the authorization policy of the internal account. An exploit could allow the attacker to have Super Admin privileges for the ISE Admin portal. This vulnerability does not affect endpoints authenticating to the ISE. The vulnerability affects Cisco ISE, Cisco ISE Express, and Cisco ISE Virtual Appliance running Release 1.3, 1.4, 2.0.0, 2.0.1, or 2.1.0. Release 2.2.x is not affected. Cisco Bug IDs: CSCvb10995.

Predictions

Exploit likelihood
97%
Patch ETA
—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Application impact
VendorProductVersionsFixed
cisco ciscoidentity_services_engine1.3\(0.722\)
cisco ciscoidentity_services_engine1.3\(0.876\)
cisco ciscoidentity_services_engine1.3\(0.909\)
cisco ciscoidentity_services_engine1.3\(106.146\)
cisco ciscoidentity_services_engine1.3\(120.135\)
cisco ciscoidentity_services_engine1.4\(0.109\)
cisco ciscoidentity_services_engine1.4\(0.181\)
cisco ciscoidentity_services_engine1.4\(0.253\)
cisco ciscoidentity_services_engine1.4\(0.908\)
cisco ciscoidentity_services_engine2.0\(0.147\)
cisco ciscoidentity_services_engine2.0\(0.169\)
cisco ciscoidentity_services_engine2.0\(0.222\)
cisco ciscoidentity_services_engine2.0\(1.130\)
cisco ciscoidentity_services_engine2.0_base
cisco ciscoidentity_services_engine2.1\(0.474\)
cisco ciscoidentity_services_engine2.1\(0.800\)
cisco ciscoidentity_services_engine2.1\(102.101\)
cisco ciscoidentity_services_engine2.1_base

References

CWEs

CWE-287

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.