CVE-2021-1388— Cisco ACI Multi-Site Orchestrator Application Services Engine Deployment Authentication Bypass Vulnerability
Quick assessment
Affected
Cisco Cisco ACI Multi-Site Orchestrator Software
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Cisco Application Policy Infrastructure Controller（APIC）是美国思科（Cisco）公司的一款自动化的基础架构部署和治理解决方案。 Cisco ACI Multi-Site Orchestrator 存在安全漏洞，该漏洞允许未经身份验证的远程攻击者可利用该漏洞绕过受影响设备上的身份验证。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-1388
Vulnerability Information
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Vulnerability Title
Cisco ACI Multi-Site Orchestrator Application Services Engine Deployment Authentication Bypass Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco ACI Multi-Site Orchestrator 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Application Policy Infrastructure Controller（APIC）是美国思科（Cisco）公司的一款自动化的基础架构部署和治理解决方案。 Cisco ACI Multi-Site Orchestrator 存在安全漏洞，该漏洞允许未经身份验证的远程攻击者可利用该漏洞绕过受影响设备上的身份验证。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Cisco | Cisco ACI Multi-Site Orchestrator Software | n/a | - |
|
II. Public POCs for CVE-2021-1388
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2021-1388 (1)
-
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-mso-authbyp-bb5GmBQv vendor-advisory x_refsource_CISCO
Same Patch Batch · Cisco · 2021-02-24 · 13 CVEs total
| CVE-2021-1361 | 9.8 CRITICAL | Cisco NX-OS Software Unauthenticated Arbitrary File Actions Vulnerability |
| CVE-2021-1393 | 9.8 CRITICAL | Cisco Application Services Engine Unauthorized Access Vulnerabilities |
| CVE-2021-1396 | 9.8 CRITICAL | Cisco Application Services Engine Unauthorized Access Vulnerabilities |
| CVE-2021-1368 | 8.8 HIGH | Cisco FXOS and NX-OS Software Unidirectional Link Detection Denial of Service and Arbitrar |
| CVE-2021-1230 | 8.6 HIGH | Cisco Nexus 9000 Series Fabric Switches ACI Mode BGP Route Installation Denial of Service |
| CVE-2021-1387 | 8.6 HIGH | Cisco NX-OS Software IPv6 Netstack Denial of Service Vulnerability |
| CVE-2021-1228 | 7.4 HIGH | Cisco Nexus 9000 Series Fabric Switches ACI Mode Fabric Infrastructure VLAN Unauthorized A |
| CVE-2021-1229 | 5.8 MEDIUM | Cisco NX-OS Software ICMP Version 6 Memory Leak Denial of Service Vulnerability |
| CVE-2021-1450 | 5.5 MEDIUM | Cisco AnyConnect Secure Mobility Client Denial of Service Vulnerability |
| CVE-2021-1231 | 4.7 MEDIUM | Cisco Nexus 9000 Series Fabric Switches ACI Mode Link Layer Discovery Protocol Port Denial |
| CVE-2021-1367 | 4.3 MEDIUM | Cisco NX-OS Software Protocol Independent Multicast Denial of Service Vulnerability |
| CVE-2021-1227 | Cisco NX-OS Software NX-API Cross-Site Request Forgery Vulnerability |
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V. Comments for CVE-2021-1388
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