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CVE-2018-15428— Cisco IOS XR Software Border Gateway Protocol 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 Software是美国思科（Cisco）公司的IOS软件系列（包括IOS T、IOS S和IOS XR）中的一套完全模块化、分布式的网络操作系统。 Cisco IOS XR Software中的Border Gateway Protocol (BGP)功能实现存在输入验证漏洞，该漏洞源于程序没有正确的处理BGP更新消息。远程攻击者可通过发送带有畸形属性项的BGP更新消息利用该漏洞造成拒绝服务（BGP进程意外重启）。

AI Predicted 7.5 Difficulty: Moderate EPSS 1.95% · P79
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I. Basic Information for CVE-2018-15428

Vulnerability Information
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Vulnerability Title
Cisco IOS XR Software Border Gateway Protocol Denial of Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the implementation of Border Gateway Protocol (BGP) functionality in Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to incorrect processing of certain BGP update messages. An attacker could exploit this vulnerability by sending BGP update messages that include a specific, malformed attribute to be processed by an affected system. A successful exploit could allow the attacker to cause the BGP process to restart unexpectedly, resulting in a DoS condition. The Cisco implementation of BGP accepts incoming BGP traffic only from explicitly defined peers. To exploit this vulnerability, the malicious BGP update message would need to come from a configured, valid BGP peer, or would need to be injected by the attacker into the victim's BGP network on an existing, valid TCP connection to a BGP peer.
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 Software 输入验证漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS XR Software是美国思科（Cisco）公司的IOS软件系列（包括IOS T、IOS S和IOS XR）中的一套完全模块化、分布式的网络操作系统。 Cisco IOS XR Software中的Border Gateway Protocol (BGP)功能实现存在输入验证漏洞，该漏洞源于程序没有正确的处理BGP更新消息。远程攻击者可通过发送带有畸形属性项的BGP更新消息利用该漏洞造成拒绝服务（BGP进程意外重启）。
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 n/a -

II. Public POCs for CVE-2018-15428

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III. Intelligence Information for CVE-2018-15428

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Vendor Advisories for CVE-2018-15428 (2)

Same Patch Batch · Cisco · 2018-10-05 · 110 CVEs total

CVE-2018-15390 Cisco Firepower Threat Defense Software FTP Inspection Denial of Service Vulnerability
CVE-2018-15407 Cisco HyperFlex World-Readable Sensitive Information Vulnerability
CVE-2018-15406 Cisco UCS Director Stored Cross-Site Scripting Vulnerability
CVE-2018-15405 Cisco Integrated Management Controller Supervisor and Cisco UCS Director Authenticated Web
CVE-2018-15404 Cisco Integrated Management Controller Supervisor and Cisco UCS Director System Resources
CVE-2018-15403 Multiple Cisco Unified Communications Products Open Redirect Vulnerability
CVE-2018-15401 Cisco Hosted Collaboration Mediation Fulfillment Cross-Site Request Forgery Vulnerability
CVE-2018-15400 Cisco Cloud Services Platform 2100 Cross-Site Scripting Vulnerability
CVE-2018-15399 Cisco Adaptive Security Appliance TCP Syslog Denial of Service Vulnerability
CVE-2018-15398 Cisco Adaptive Security Appliance Access Control List Bypass Vulnerability
CVE-2018-15397 Cisco Adaptive Security Appliance IPsec VPN Denial of Service Vulnerability
CVE-2018-15396 Cisco Unity Connection File Upload Denial of Service Vulnerability
CVE-2018-15392 Cisco Industrial Network Director DHCP Request Processing Denial of Service Vulnerability
CVE-2018-15391 Cisco Remote PHY IPv4 Fragment Denial of Service Vulnerability
CVE-2018-15373 Cisco IOS and IOS XE Software Cisco Discovery Protocol Denial of Service Vulnerability
CVE-2018-15376 Cisco IOS Software for Cisco 800 Series Industrial Integrated Services Routers Arbitrary M
CVE-2018-15375 Cisco IOS Software for Cisco 800 Series Industrial Integrated Services Routers Arbitrary M
CVE-2018-15374 Cisco IOS XE Software Digital Signature Verification Bypass Vulnerability
CVE-2018-15377 Cisco IOS and IOS XE Software Plug and Play Agent Memory Leak Vulnerability
CVE-2018-15372 Cisco IOS XE Software MACsec MKA Using EAP-TLS Authentication Bypass Vulnerability

Showing top 20 of 110 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

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

V. Comments for CVE-2018-15428

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