CVE-2019-12643
In your normal cycle
Critical by CVSS (10), but no sign of active exploitation.
Description
A vulnerability in the Cisco REST API virtual service container for Cisco IOS XE Software could allow an unauthenticated, remote attacker to bypass authentication on the managed Cisco IOS XE device. The vulnerability is due to an improper check performed by the area of code that manages the REST API authentication service. An attacker could exploit this vulnerability by submitting malicious HTTP requests to the targeted device. A successful exploit could allow the attacker to obtain the token-id of an authenticated user. This token-id could be used to bypass authentication and execute privileged actions through the interface of the REST API virtual service container on the affected Cisco IOS XE device. The REST API interface is not enabled by default and must be installed and activated separately on IOS XE devices. See the Details section for more information.
Scoring
| CVSS | 10.0 (CRITICAL, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H |
| EPSS | 5.32% — more likely to be exploited than 92% of all CVEs |
| Weakness | CWE-287 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2019-08-28 |
| Last modified | 2026-06-17 |
Affected (8)
| Vendor | Product |
|---|---|
| cisco | 4221 integrated services router |
| cisco | 4321 integrated services router |
| cisco | 4331 integrated services router |
| cisco | 4351 integrated services router |
| cisco | 4431 integrated services router |
| cisco | 4451-x integrated services router |
| cisco | cloud services router 1000v |
| cisco | ios xe |
References
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