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CVE-2019-1712— Cisco IOS XR Software Protocol Independent Multicast Denial of Service Vulnerability

Quick assessment

Affected
Cisco Cisco IOS XR 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 XR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 XR中的Protocol Independent Multicast (PIM)功能存在输入验证错误漏洞。该漏洞源于网络系统或产品未对输入的数据进行正确的验证。以下版本受到影响：Cisco IOS XR 6.2.3之前版本，6.3.2之前版本，6.4.0之前版本，6.5.1之前版本。

AI Predicted 7.5 Difficulty: Easy EPSS 2.64% · P85

Possible ATT&CK Techniques 1 AI

T1527
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I. Basic Information for CVE-2019-1712

Vulnerability Information
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Vulnerability Title
Cisco IOS XR Software Protocol Independent Multicast Denial of Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the Protocol Independent Multicast (PIM) feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause the PIM process to restart, resulting in a denial of service condition on an affected device. The vulnerability is due to the incorrect processing of crafted AutoRP packets. An attacker could exploit this vulnerability by sending crafted packets to port UDP 496 on a reachable IP address on the device. A successful exploit could allow the attacker to cause the PIM process to restart. Software versions prior to 6.2.3, 6.3.2, 6.4.0, and 6.5.1 are affected.
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 XR 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS XR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 XR中的Protocol Independent Multicast (PIM)功能存在输入验证错误漏洞。该漏洞源于网络系统或产品未对输入的数据进行正确的验证。以下版本受到影响：Cisco IOS XR 6.2.3之前版本，6.3.2之前版本，6.4.0之前版本，6.5.1之前版本。
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 XR Software unspecified ~ 6.2.3 -

II. Public POCs for CVE-2019-1712

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III. Intelligence Information for CVE-2019-1712

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Vendor Advisories for CVE-2019-1712 (2)

Same Patch Batch · Cisco · 2019-04-17 · 8 CVEs total

CVE-2018-0248 Cisco Wireless LAN Controller Software GUI Configuration Denial of Service Vulnerabilities
CVE-2018-0382 Cisco Wireless LAN Controller Software Session Hijacking Vulnerability
CVE-2019-1654 Cisco Aironet Series Access Points Development Shell Access Vulnerability
CVE-2019-1710 Cisco IOS XR 64-Bit Software for Cisco ASR 9000 Series Aggregation Services Routers Networ
CVE-2019-1686 Cisco ASR 9000 Series Aggregation Services Routers ACL Bypass Vulnerability
CVE-2019-1711 Cisco IOS XR gRPC Software Denial of Service Vulnerability
CVE-2019-1718 Cisco Identity Services Engine SSL Renegotiation Denial of Service Vulnerability

IV. Related Vulnerabilities

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

V. Comments for CVE-2019-1712

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