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CVE-2019-12652— Cisco Catalyst 4000 Series Switches TCP Denial of Service Vulnerability

Quick assessment

Affected
Cisco Cisco IOS 15.0(1)XO1
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.

多款Cisco产品中的IOS Software的输入数据包处理功能存在资源管理错误漏洞，该漏洞源于在处理TCP数据包时，程序进行了不正确的资源分配。远程攻击者可通过向受影响的设备发送特制的TCP流利用该漏洞造成拒绝服务。以下产品及版本受到影响：Cisco Catalyst 4500 Supervisor Engine 6-E；Catalyst 4500 Supervisor Engine 6L-E；Catalyst 4900M Switch；Catalyst 4948E Ethernet Switch；C

AI Predicted 7.5 Difficulty: Moderate EPSS 2.71% · P85
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I. Basic Information for CVE-2019-12652

Vulnerability Information
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Vulnerability Title
Cisco Catalyst 4000 Series Switches TCP Denial of Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the ingress packet processing function of Cisco IOS Software for Cisco Catalyst 4000 Series Switches could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper resource allocation when processing TCP packets directed to the device on specific Cisco Catalyst 4000 Series Switches. An attacker could exploit this vulnerability by sending crafted TCP streams to an affected device. A successful exploit could cause the affected device to run out of buffer resources, impairing operations of control plane and management plane protocols, resulting in a DoS condition. This vulnerability can be triggered only by traffic that is destined to an affected device and cannot be exploited using traffic that transits an affected device.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
资源管理错误
Source: CVE Program / CVE List V5
Vulnerability Title
多款Cisco产品IOS 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
多款Cisco产品中的IOS Software的输入数据包处理功能存在资源管理错误漏洞，该漏洞源于在处理TCP数据包时，程序进行了不正确的资源分配。远程攻击者可通过向受影响的设备发送特制的TCP流利用该漏洞造成拒绝服务。以下产品及版本受到影响：Cisco Catalyst 4500 Supervisor Engine 6-E；Catalyst 4500 Supervisor Engine 6L-E；Catalyst 4900M Switch；Catalyst 4948E Ethernet Switch；C
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 15.0(1)XO1 unspecified ~ n/a -

II. Public POCs for CVE-2019-12652

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III. Intelligence Information for CVE-2019-12652

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Vendor Advisories for CVE-2019-12652 (1)

Same Patch Batch · Cisco · 2019-09-25 · 29 CVEs total

CVE-2019-12709 Cisco IOS XR Software for Cisco ASR 9000 VMAN CLI Privilege Escalation Vulnerability
CVE-2019-12646 Cisco IOS XE Software NAT Session Initiation Protocol Application Layer Gateway Denial of
CVE-2019-12650 Cisco IOS XE Software Web UI Command Injection Vulnerabilities
CVE-2019-12649 Cisco IOS XE Software Digital Signature Verification Bypass Vulnerability
CVE-2019-12648 Cisco IOx for IOS Software Guest Operating System Unauthorized Access Vulnerability
CVE-2019-12647 Cisco IOS and IOS XE Software IP Ident Denial of Service Vulnerability
CVE-2019-12651 Cisco IOS XE Software Web UI Command Injection Vulnerabilities
CVE-2019-12653 Cisco IOS XE Software Raw Socket Transport Denial of Service Vulnerability
CVE-2019-12665 Cisco IOS and IOS XE Software HTTP Client Information Disclosure Vulnerability
CVE-2019-12663 Cisco IOS XE Software TrustSec Protected Access Credential Provisioning Denial of Service
CVE-2019-12661 Cisco IOS XE Software Virtualization Manager CLI Command Injection Vulnerability
CVE-2019-12659 Cisco IOS XE Software HTTP Server Denial of Service Vulnerability
CVE-2019-12657 Cisco IOS XE Software Unified Threat Defense Denial of Service Vulnerability
CVE-2019-12655 Cisco IOS XE Software FTP Application Layer Gateway for NAT, NAT64, and ZBFW Denial of Ser
CVE-2019-12672 Cisco IOS XE Software Arbitrary Code Execution Vulnerability
CVE-2019-12671 Cisco IOS XE Software Consent Token Bypass Vulnerability
CVE-2019-12669 Cisco IOS and IOS XE Software Change of Authorization Denial of Service Vulnerability
CVE-2019-12667 Cisco IOS XE Software Stored Cross-Site Scripting Vulnerability
CVE-2019-12658 Cisco IOS XE Software Filesystem Exhaustion Denial of Service Vulnerability
CVE-2019-12656 Cisco IOx Application Environment Denial of Service Vulnerability

Showing top 20 of 29 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same vendor: Cisco
Same weakness: CWE-399

V. Comments for CVE-2019-12652

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