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CVE-2019-1741— Cisco IOS XE Software Encrypted Traffic Analytics Denial of Service Vulnerability

Quick assessment

Affected
Cisco Cisco IOS XE Software
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Cisco IOS XE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中的Cisco Encrypted Traffic Analytics (ETA)功能存在输入验证漏洞，该漏洞源于在处理畸形的输入数据包时，程序存在逻辑错误。远程攻击者可通过发送特制的畸形IP数据包利用该漏洞造成拒绝服务。

AI Predicted 7.5 Difficulty: Easy EPSS 2.76% · P86

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2019-1741

Vulnerability Information
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Vulnerability Title
Cisco IOS XE Software Encrypted Traffic Analytics Denial of Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the Cisco Encrypted Traffic Analytics (ETA) feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to a logic error that exists when handling a malformed incoming packet, leading to access to an internal data structure after it has been freed. An attacker could exploit this vulnerability by sending crafted, malformed IP packets to an affected device. A successful exploit could allow the attacker to cause an affected device to reload, resulting in a DoS condition.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco IOS XE 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS XE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中的Cisco Encrypted Traffic Analytics (ETA)功能存在输入验证漏洞，该漏洞源于在处理畸形的输入数据包时，程序存在逻辑错误。远程攻击者可通过发送特制的畸形IP数据包利用该漏洞造成拒绝服务。
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 3.2.0JA -

II. Public POCs for CVE-2019-1741

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III. Intelligence Information for CVE-2019-1741

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Vendor Advisories for CVE-2019-1741 (2)

Same Patch Batch · Cisco · 2019-03-27 · 13 CVEs total

CVE-2019-1737 Cisco IOS and IOS XE Software IP Service Level Agreement Denial of Service Vulnerability
CVE-2019-1738 Cisco IOS and IOS XE Software Network-Based Application Recognition Denial of Service Vuln
CVE-2019-1739 Cisco IOS and IOS XE Software Network-Based Application Recognition Denial of Service Vuln
CVE-2019-1740 Cisco IOS and IOS XE Software Network-Based Application Recognition Denial of Service Vuln
CVE-2019-1743 Cisco IOS XE Software Arbitrary File Upload Vulnerability
CVE-2019-1742 Cisco IOS XE Software Information Disclosure Vulnerability
CVE-2019-1745 Cisco IOS XE Software Command Injection Vulnerability
CVE-2019-1746 Cisco IOS and IOS XE Software Cluster Management Protocol Denial of Service Vulnerability
CVE-2019-1748 Cisco IOS and IOS XE Software Network Plug-and-Play Agent Certificate Validation Vulnerabi
CVE-2019-1747 Cisco IOS and IOS XE Software Short Message Service Denial of Service Vulnerability
CVE-2019-1750 Cisco IOS XE Software Catalyst 4500 Cisco Discovery Protocol Denial of Service Vulnerabili
CVE-2019-1749 Cisco Aggregation Services Router 900 Route Switch Processor 3 OSPFv2 Denial of Service Vu

IV. Related Vulnerabilities

Same product: Cisco IOS XE Software
Same vendor: Cisco
Same weakness: CWE-20

V. Comments for CVE-2019-1741

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