CVE-2019-1851 json
Cisco Identity Services Engine Arbitrary Client Certificate Creation Vulnerability
published 2019-05-16 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-10408
- cvss
- 6.8
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.1%
- EPSS 1.1% chance of exploitation in 30 days, percentile 65%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 23 mo ago
Exploit prediction
1.10% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 6.8 | CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N |
| NVD | 3.1 | 6.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:N/I:P/A:N |
Affected products
- Cisco Cisco Identity Services Engine Software
Classification
- Weakness
-
- CWE-285 Improper Authorization
References
-
tools.cisco.com
/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-ise-certcreation
vendor-advisory
-
securityfocus.com
/bid/108356
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2019-1851
- NVD CVE-2019-1851
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