Privilege escalation in Cisco Aci Multi-Site Orchestrator
CVE-2021-1388
A vulnerability in an API endpoint of Cisco ACI Multi-Site Orchestrator (MSO) installed on the Application Services Engine could allow an unauthenticated, remote attacker to bypass authentication on an affected device. The vulnerability is due to improper token validation on a specific API endpoint. An attacker could exploit this vulnerability by sending a crafted request to the affected API. A successful exploit could allow the attacker to receive a token with administrator-level privileges that could be used to authenticate to the API on affected MSO and managed Cisco Application Policy Infrastructure Controller (APIC) devices.
Vulnerability class: Privilege Escalation
EPSS: 0.144 (96.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Cisco Aci_multi-site_orchestrator
- Cisco Application_policy_infrastructure_controller — versions 3.0\(3i\)
- Cisco Aci Multi-site Orchestrator Software — versions n/a
Weakness classification (CWE)
References
- psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-1388?
- CVE-2021-1388 is a critical-severity vulnerability in Cisco Aci Multi-Site Orchestrator, classified under Improper Privilege Management. CVSS score: 10.0/10. Published 2021-02-24.
- How severe is CVE-2021-1388?
- Critical severity. CVSS v3 base score is 10.0 out of 10.