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CVE-2020-3416— Cisco IOS XE Software for Cisco ASR 900 Series Route Switch Processor 3 Arbitrary Code Execution Vulnerabilities

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 ASR 900 Series是美国思科（Cisco）公司的一款900系列聚合服务路由器。 Cisco ASR 900 Series Route Switch Processor 3 (RSP3) 存在安全漏洞，这些漏洞源于设置了特定的ROM监视器（ROMMON）变量时启动脚本对验证的不正确所致。攻击者可利用该漏洞能够以root特权在底层操作系统（OS）上运行任意代码。

CVSS 6.7 · Medium EPSS 0.32% · P25
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I. Basic Information for CVE-2020-3416

Vulnerability Information
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Vulnerability Title
Cisco IOS XE Software for Cisco ASR 900 Series Route Switch Processor 3 Arbitrary Code Execution Vulnerabilities
Source: CVE Program / CVE List V5
Vulnerability Description
Multiple vulnerabilities in the initialization routines that are executed during bootup of Cisco IOS XE Software for Cisco ASR 900 Series Aggregation Services Routers with a Route Switch Processor 3 (RSP3) installed could allow an authenticated, local attacker with high privileges to execute persistent code at bootup and break the chain of trust. These vulnerabilities are due to incorrect validations by boot scripts when specific ROM monitor (ROMMON) variables are set. An attacker could exploit these vulnerabilities by copying a specific file to the local file system of an affected device and defining specific ROMMON variables. A successful exploit could allow the attacker to run arbitrary code on the underlying operating system (OS) with root privileges. To exploit these vulnerabilities, an attacker would need to have access to the root shell on the device or have physical access to the device.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
暴露危险的方法或函数
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco ASR 900 Series Aggregation Services Routers 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco ASR 900 Series是美国思科（Cisco）公司的一款900系列聚合服务路由器。 Cisco ASR 900 Series Route Switch Processor 3 (RSP3) 存在安全漏洞，这些漏洞源于设置了特定的ROM监视器（ROMMON）变量时启动脚本对验证的不正确所致。攻击者可利用该漏洞能够以root特权在底层操作系统（OS）上运行任意代码。
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-2020-3416

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III. Intelligence Information for CVE-2020-3416

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Vendor Advisories for CVE-2020-3416 (1)

Same Patch Batch · Cisco · 2020-09-24 · 52 CVEs total

CVE-2020-3141 8.8 HIGH Cisco IOS XE Software Privilege Escalation Vulnerabilities
CVE-2020-3425 8.8 HIGH Cisco IOS XE Software Privilege Escalation Vulnerabilities
CVE-2020-3480 8.6 HIGH Cisco IOS XE Software Zone-Based Firewall Denial of Service Vulnerabilities
CVE-2020-3399 8.6 HIGH Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family CAPWAP Denial of Se
CVE-2020-3421 8.6 HIGH Cisco IOS XE Software Zone-Based Firewall Denial of Service Vulnerabilities
CVE-2020-3426 7.5 HIGH Cisco IOS Software for Cisco Industrial Routers Virtual-LPWA Unauthorized Access Vulnera
CVE-2020-3465 7.4 HIGH Cisco IOS XE Software Ethernet Frame Denial of Service Vulnerability
CVE-2020-3508 7.4 HIGH Cisco IOS XE Software for Cisco ASR 1000 Series 20-Gbps Embedded Services Processor IP ARP
CVE-2020-3396 6.8 MEDIUM Cisco IOS XE Software IOx Guest Shell USB SSD Namespace Protection Privilege Escalation Vu
CVE-2020-3417 6.8 MEDIUM Cisco IOS XE Software Arbitrary Code Execution Vulnerability
CVE-2020-3513 6.7 MEDIUM Cisco IOS XE Software for Cisco ASR 900 Series Route Switch Processor 3 Arbitrary Code Exe
CVE-2020-3479 6.1 MEDIUM Cisco IOS and IOS XE Software MP-BGP EVPN Denial of Service Vulnerability
CVE-2020-3393 6.0 MEDIUM Cisco IOS XE Software IOx Application Hosting Privilege Escalation Vulnerability
CVE-2020-3503 6.0 MEDIUM Cisco IOS XE Software Guest Shell Unauthorized File System Access Vulnerability
CVE-2020-3423 5.1 MEDIUM Cisco IOS XE Software Arbitrary Code Execution Vulnerability
CVE-2020-3475 4.3 MEDIUM Cisco IOS XE Software Web Management Framework Vulnerabilities
CVE-2020-3474 4.3 MEDIUM Cisco IOS XE Software Web Management Framework Vulnerabilities
CVE-2020-3476 Cisco IOS XE Software Arbitrary File Overwrite Vulnerability
CVE-2020-3422 Cisco IOS XE Software IP Service Level Agreements Denial of Service Vulnerability
CVE-2020-3428 Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family WLAN Local Profilin

Showing top 20 of 52 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Cisco IOS XE Software
Same vendor: Cisco
Same weakness: CWE-749

V. Comments for CVE-2020-3416

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