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CVE-2019-12643— Cisco REST API Container for IOS XE Software Authentication Bypass Vulnerability

Quick assessment

Affected
Cisco Cisco IOS XE 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 IOS和IOS XE都是美国思科（Cisco）公司的一套为其网络设备开发的操作系统。 Cisco IOS XE Software中的Cisco REST API虚拟服务容器存在授权问题漏洞，该漏洞源于管理REST API身份验证服务的代码区域没有执行正确的检查。远程攻击可通过提交恶意的HTTP请求利用该漏洞获取已认证用户的token-id，绕过身份验证并执行特权操作。以下产品及版本受到影响：Cisco 4000 Series Integrated Services Routers；ASR 10

AI Predicted 8.1 Difficulty: Easy EPSS 5.32% · P92
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I. Basic Information for CVE-2019-12643

Vulnerability Information
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Vulnerability Title
Cisco REST API Container for IOS XE Software Authentication Bypass Vulnerability
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco IOS XE Software 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS和IOS XE都是美国思科（Cisco）公司的一套为其网络设备开发的操作系统。 Cisco IOS XE Software中的Cisco REST API虚拟服务容器存在授权问题漏洞，该漏洞源于管理REST API身份验证服务的代码区域没有执行正确的检查。远程攻击可通过提交恶意的HTTP请求利用该漏洞获取已认证用户的token-id，绕过身份验证并执行特权操作。以下产品及版本受到影响：Cisco 4000 Series Integrated Services Routers；ASR 10
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 IOS XE Software unspecified ~ 16.09.03 -

II. Public POCs for CVE-2019-12643

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III. Intelligence Information for CVE-2019-12643

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Vendor Advisories for CVE-2019-12643 (1)

Same Patch Batch · Cisco · 2019-08-28 · 5 CVEs total

CVE-2019-1964 Cisco NX-OS Software IPv6 Denial of Service Vulnerability
CVE-2019-1965 Cisco NX-OS Software Remote Management Memory Leak Denial of Service Vulnerability
CVE-2019-1962 Cisco NX-OS Software Cisco Fabric Services over IP Denial of Service Vulnerability
CVE-2019-1963 Cisco FXOS and NX-OS Software Authenticated Simple Network Management Protocol Denial of S

IV. Related Vulnerabilities

Same product: Cisco IOS XE Software
Same vendor: Cisco
Same weakness: CWE-287

V. Comments for CVE-2019-12643

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