CVE-2019-1851
Cisco Identity Services Engine Arbitrary Client Certificate Creation Vulnerability
At a glance
- Source
- NVD
- EPSS
- EPSS 1.10 % · percentile 66 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- cisco
- NVD status
- Modified
Description
A vulnerability in the External RESTful Services (ERS) API of the Cisco Identity Services Engine (ISE) could allow an authenticated, remote attacker to generate arbitrary certificates signed by the Internal Certificate Authority (CA) Services on ISE. This vulnerability is due to an incorrect implementation of role-based access control (RBAC). An attacker could exploit this vulnerability by crafting a specific HTTP request with administrative credentials. A successful exploit could allow the attacker to generate a certificate that is signed and trusted by the ISE CA with arbitrary attributes. The attacker could use this certificate to access other networks or assets that are protected by certificate authentication.
Weaknesses (CWE)
- CWE-285 — Improper Authorization
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.0 | MEDIUM 6.8 | CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N | cisco |
| CVSS 3.1 | MEDIUM 6.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N | NVD · nvd@nist.gov (Primary) |
| CVSS 3.0 | MEDIUM 6.8 | CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N | NVD · psirt@cisco.com (Secondary) |
| CVSS 2.0 | MEDIUM 4.0 | AV:N/AC:L/Au:S/C:N/I:P/A:N | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2019-10408
- GCVE · GCVE-0-2019-1851
Affected configurations (NVD CPE)
cpe:2.3:a:cisco:identity_services_engine:2.2\(0.470\):*:*:*:*:*:*:*cpe:2.3:a:cisco:identity_services_engine:2.3\(0.298\):*:*:*:*:*:*:*cpe:2.3:a:cisco:identity_services_engine:2.4\(0.357\):*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Cisco · Cisco Identity Services Engine Software | affected unspecified < n/a |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |