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CVE-2021-1431— Cisco IOS XE SD-WAN Software vDaemon 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 SD-WAN Software是美国思科（Cisco）公司的一款应用于Cisco IOS XE 网络操作系统的用于网络管理（软件定义网络）的软件。 Cisco IOS XE SD-WAN Software 存在安全漏洞，该漏洞源于对畸形数据包的处理不足。攻击者可利用该漏洞导致设备重新加载，从而导致拒绝服务(DoS)条件。

CVSS 7.5 · High EPSS 1.60% · P74

Possible ATT&CK Techniques 1 AI

T1499.002 · Service Exhaustion Flood
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I. Basic Information for CVE-2021-1431

Vulnerability Information
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Vulnerability Title
Cisco IOS XE SD-WAN Software vDaemon Denial of Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the vDaemon process of Cisco IOS XE SD-WAN Software could allow an unauthenticated, remote attacker to cause a device to reload, resulting a denial of service (DoS) condition. This vulnerability is due to insufficient handling of malformed packets. An attacker could exploit this vulnerability by sending crafted traffic to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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 SD-WAN Software 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS XE SD-WAN Software是美国思科（Cisco）公司的一款应用于Cisco IOS XE 网络操作系统的用于网络管理（软件定义网络）的软件。 Cisco IOS XE SD-WAN Software 存在安全漏洞，该漏洞源于对畸形数据包的处理不足。攻击者可利用该漏洞导致设备重新加载，从而导致拒绝服务(DoS)条件。
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 n/a -

II. Public POCs for CVE-2021-1431

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III. Intelligence Information for CVE-2021-1431

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Vendor Advisories for CVE-2021-1431 (1)

Same Patch Batch · Cisco · 2021-03-24 · 45 CVEs total

CVE-2021-1418 9.9 CRITICAL Cisco Jabber Desktop and Mobile Client Software Vulnerabilities
CVE-2021-1417 9.9 CRITICAL Cisco Jabber Desktop and Mobile Client Software Vulnerabilities
CVE-2021-1411 9.9 CRITICAL Cisco Jabber Desktop and Mobile Client Software Vulnerabilities
CVE-2021-1471 9.9 CRITICAL Cisco Jabber Desktop and Mobile Client Software Vulnerabilities
CVE-2021-1469 9.9 CRITICAL Cisco Jabber Desktop and Mobile Client Software Vulnerabilities
CVE-2021-1373 8.6 HIGH Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family CAPWAP Denial of Se
CVE-2021-1446 8.6 HIGH Cisco IOS XE Software DNS NAT Protocol Application Layer Gateway Denial of Service Vulnera
CVE-2021-1451 8.1 HIGH Cisco IOS XE Software Easy Virtual Switching System Arbitrary Code Execution Vulnerability
CVE-2021-1433 8.1 HIGH Cisco IOS XE SD-WAN Software vDaemon Buffer Overflow Vulnerability
CVE-2021-1392 7.8 HIGH Cisco IOS and IOS XE Software Common Industrial Protocol Privilege Escalation Vulnerabili
CVE-2021-1437 7.5 HIGH Cisco Aironet Access Points FlexConnect Upgrade Information Disclosure Vulnerability
CVE-2021-1352 7.4 HIGH Cisco IOS XE Software DECnet Phase IV/OSI Denial of Service Vulnerability
CVE-2021-1439 7.4 HIGH Cisco Aironet Access Points FlexConnect Multicast DNS Denial of Service Vulnerability
CVE-2021-1403 7.4 HIGH Cisco IOS XE Software Web UI Cross-Site WebSocket Hijacking Vulnerability
CVE-2021-1432 7.3 HIGH Cisco IOS XE SD-WAN Software Arbitrary Command Execution Vulnerability
CVE-2021-1453 6.8 MEDIUM Cisco IOS XE Software for the Catalyst 9000 Family Arbitrary Code Execution Vulnerability
CVE-2021-1398 6.8 MEDIUM Cisco IOS XE Software Arbitrary Code Execution Vulnerability
CVE-2021-1452 6.8 MEDIUM Cisco IOS XE ROM Monitor Software for Cisco Industrial Switches OS Command Injection Vulne
CVE-2021-1441 6.7 MEDIUM Cisco IOS XE Software Hardware Initialization Routines Arbitrary Code Execution Vulnerabil
CVE-2021-1449 6.7 MEDIUM Cisco Access Point Software Arbitrary Code Execution Vulnerability

Showing top 20 of 45 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

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

V. Comments for CVE-2021-1431

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