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CVE-2019-1616— Cisco NX-OS Software Cisco Fabric Services Denial of Service Vulnerability

Quick assessment

Affected
Cisco MDS 9000 Series Multilayer Switches
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 Nexus 9500 R-Series Line Cards and Fabric Modules等都是美国思科（Cisco）公司的产品。Cisco Nexus 9500 R-Series Line Cards and Fabric Modules是一款9500R系列线卡模块。Cisco Nexus 3000 Series Switches是一款3000系列交换机。Cisco MDS 9000 Series Multilayer Switches是一款MDS 9000系列多层交换机。Cisco

AI Predicted 7.5 Difficulty: Easy EPSS 2.44% · P84

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2019-1616

Vulnerability Information
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Vulnerability Title
Cisco NX-OS Software Cisco Fabric Services Denial of Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the Cisco Fabric Services component of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a buffer overflow, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient validation of Cisco Fabric Services packets. An attacker could exploit this vulnerability by sending a crafted Cisco Fabric Services packet to an affected device. A successful exploit could allow the attacker to cause a buffer overflow, resulting in process crashes and a DoS condition on the device. MDS 9000 Series Multilayer Switches are affected running software versions prior to 6.2(25), 8.1(1b), 8.3(1). Nexus 3000 Series Switches are affected running software versions prior to 7.0(3)I4(9) and 7.0(3)I7(4). Nexus 3500 Platform Switches are affected running software versions prior to 6.0(2)A8(10) and 7.0(3)I7(4). Nexus 3600 Platform Switches are affected running software versions prior to 7.0(3)F3(5) Nexus 7000 and 7700 Series Switches are affected running software versions prior to 6.2(22) and 8.2(3). Nexus 9000 Series Switches in Standalone NX-OS Mode are affected running software versions prior to 7.0(3)I4(9) and 7.0(3)I7(4). Nexus 9500 R-Series Line Cards and Fabric Modules are affected running software versions prior to 7.0(3)F3(5). UCS 6200, 6300, and 6400 Fabric Interconnects are affected running software versions prior to 3.2(3j) and 4.0(2a).
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 NX-OS Software 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Nexus 9500 R-Series Line Cards and Fabric Modules等都是美国思科（Cisco）公司的产品。Cisco Nexus 9500 R-Series Line Cards and Fabric Modules是一款9500R系列线卡模块。Cisco Nexus 3000 Series Switches是一款3000系列交换机。Cisco MDS 9000 Series Multilayer Switches是一款MDS 9000系列多层交换机。Cisco
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 MDS 9000 Series Multilayer Switches unspecified ~ 6.2(25) -
Cisco Nexus 3000 Series Switches unspecified ~ 7.0(3)I4(9) -
Cisco Nexus 3500 Platform Switches unspecified ~ 6.0(2)A8(10) -
Cisco Nexus 3600 Platform Switches unspecified ~ 7.0(3)F3(5) -
Cisco Nexus 7000 and 7700 Series Switches unspecified ~ 6.2(22) -
Cisco Nexus 9000 Series Switches in Standalone NX-OS Mode unspecified ~ 7.0(3)I4(9) -
Cisco Nexus 9500 R-Series Line Cards and Fabric Modules unspecified ~ 7.0(3)F3(5) -
Cisco UCS 6200, 6300, and 6400 Fabric Interconnects unspecified ~ 3.2(3j) -

II. Public POCs for CVE-2019-1616

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III. Intelligence Information for CVE-2019-1616

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Vendor Advisories for CVE-2019-1616 (2)

Same Patch Batch · Cisco · 2019-03-11 · 12 CVEs total

CVE-2019-1610 Cisco NX-OS Software CLI Command Injection Vulnerability (CVE-2019-1610)
CVE-2019-1611 Cisco FXOS and NX-OS Software CLI Command Injection Vulnerability (CVE-2019-1611)
CVE-2019-1612 Cisco NX-OS Software CLI Command Injection Vulnerability (CVE-2019-1612)
CVE-2019-1613 Cisco NX-OS Software CLI Command Injection Vulnerability (CVE-2019-1613)
CVE-2019-1614 Cisco NX-OS Software NX-API Command Injection Vulnerability
CVE-2019-1615 Cisco NX-OS Software Image Signature Verification Vulnerability
CVE-2019-1617 Cisco Nexus 9000 Series Switches Standalone NX-OS Mode Fibre Channel over Ethernet NPV Den
CVE-2019-1618 Cisco Nexus 9000 Series Switches Standalone NX-OS Mode Tetration Analytics Agent Arbitrary
CVE-2019-1690 Cisco Application Policy Infrastructure Controller IPv6 Link-Local Address Vulnerability
CVE-2019-1702 Cisco Enterprise Chat and Email Cross-Site Scripting Vulnerabilities
CVE-2019-1707 Cisco DNA Center Access Contract Stored Cross-Site Scripting Vulnerability

IV. Related Vulnerabilities

Same product: MDS 9000 Series Multilayer Switches
Same vendor: Cisco
Same weakness: CWE-20

V. Comments for CVE-2019-1616

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