CVE-2020-3423— Cisco IOS XE Software Arbitrary Code Execution Vulnerability
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I. Basic Information for CVE-2020-3423
Vulnerability Information
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Vulnerability Title
Cisco IOS XE Software Arbitrary Code Execution Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the implementation of the Lua interpreter that is integrated in Cisco IOS XE Software could allow an authenticated, local attacker to execute arbitrary code with root privileges on the underlying Linux operating system (OS) of an affected device. The vulnerability is due to insufficient restrictions on Lua function calls within the context of user-supplied Lua scripts. An attacker with valid administrative credentials could exploit this vulnerability by submitting a malicious Lua script. When this file is processed, an exploitable buffer overflow condition could occur. A successful exploit could allow the attacker to execute arbitrary code with root privileges on the underlying Linux OS of the affected device.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
内存缓冲区边界内操作的限制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco IOS XE Lua解释器缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS等都是美国思科（Cisco）公司的产品。Cisco IOS是一套为其网络设备开发的操作系统。IOS XE是一套为其网络设备开发的操作系统。Lua等都是Lua（Lua）团队的产品。Lua是一款轻量级、扩展的开源脚本语言。 Cisco IOS XE的Lua解释器存在安全漏洞，该漏洞源于用户提供的Lua脚本的上下文中对Lua函数调用的限制不足所致。攻击者可利用该漏洞以root特权执行任意代码。
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 3.7.0S | n/a | - |
II. Public POCs for CVE-2020-3423
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-lua-rce-7VeJX4fvendor-advisoryx_refsource_CISCO
- https://nvd.nist.gov/vuln/detail/CVE-2020-3423
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-2020-3416 | 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-2020-3474 | 4.3 MEDIUM | Cisco IOS XE Software Web Management Framework Vulnerabilities |
| CVE-2020-3475 | 4.3 MEDIUM | Cisco IOS XE Software Web Management Framework Vulnerabilities |
| CVE-2020-3428 | Cisco IOS XE Wireless Controller Software for the Catalyst 9000 Family WLAN Local Profilin | |
| CVE-2020-3422 | Cisco IOS XE Software IP Service Level Agreements Denial of Service Vulnerability | |
| CVE-2020-3476 | Cisco IOS XE Software Arbitrary File Overwrite Vulnerability |
Showing top 20 of 52 CVEs. View all on vendor page → →
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