CVE-2023-20082— Cisco IOS XE Software for Cisco Catalyst 9300 Series Switches Secure Boot Bypass Vulnerability
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I. Basic Information for CVE-2023-20082
Vulnerability Information
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Vulnerability Title
Cisco IOS XE Software for Cisco Catalyst 9300 Series Switches Secure Boot Bypass Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in Cisco IOS XE Software for Cisco Catalyst 9300 Series Switches could allow an authenticated, local attacker with level-15 privileges or an unauthenticated attacker with physical access to the device to execute persistent code at boot time and break the chain of trust. This vulnerability is due to errors that occur when retrieving the public release key that is used for image signature verification. An attacker could exploit this vulnerability by modifying specific variables in the Serial Peripheral Interface (SPI) flash memory of an affected device. A successful exploit could allow the attacker to execute persistent code on the underlying operating system. Note: In Cisco IOS XE Software releases 16.11.1 and later, the complexity of an attack using this vulnerability is high. However, an attacker with level-15 privileges could easily downgrade the Cisco IOS XE Software on a device to a release that would lower the attack complexity.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco IOS XE Software 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IOS XE Software是美国思科（Cisco）公司的一个操作系统。用于企业有线和无线访问，汇聚，核心和WAN的单一操作系统，Cisco IOS XE降低了业务和网络的复杂性。 Cisco IOS XE Software 存在安全漏洞，该漏洞源于在检索用于图像签名验证的公开发布密钥时发生错误。
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 ROMMON Software | n/a | - |
II. Public POCs for CVE-2023-20082
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Cisco · 2023-03-23 · 18 CVEs total
| CVE-2023-20027 | 8.6 HIGH | Cisco IOS XE Software Virtual Fragmentation Reassembly Denial of Service Vulnerability |
| CVE-2023-20072 | 8.6 HIGH | Cisco IOS XE Software Fragmented Tunnel Protocol Packet Denial of Service Vulnerability |
| CVE-2023-20080 | 8.6 HIGH | Cisco IOS and IOS XE Software IPv6 DHCP (DHCPv6) Relay and Server Denial of Service Vulner |
| CVE-2023-20055 | 8.0 HIGH | Cisco DNA Center Privilege Escalation Vulnerability |
| CVE-2023-20035 | 7.8 HIGH | Cisco IOS XE SD-WAN Software Command Injection Vulnerability |
| CVE-2023-20065 | 7.8 HIGH | Cisco IOS XE Software 安全漏洞 |
| CVE-2023-20112 | 7.4 HIGH | Cisco Access Point Software Association Request Denial of Service Vulnerability |
| CVE-2023-20067 | 7.4 HIGH | Cisco IOS XE Software for Wireless LAN Controllers HTTP Client Profiling Denial of Service |
| CVE-2023-20100 | 6.8 MEDIUM | Cisco IOS XE Software for Wireless LAN Controllers CAPWAP Join Denial of Service Vulnerabi |
| CVE-2023-20081 | 6.8 MEDIUM | Cisco Adaptive Security Appliance Software, Firepower Threat Defense Software, IOS Softwar |
| CVE-2023-20113 | 6.5 MEDIUM | Cisco SD-WAN vManage Software Cross-Site Request Forgery Vulnerability |
| CVE-2023-20066 | 6.5 MEDIUM | Cisco IOS XE Software Web UI Path Traversal Vulnerability |
| CVE-2023-20056 | 6.5 MEDIUM | Cisco Access Point Software Denial of Service Vulnerability |
| CVE-2023-20097 | 4.6 MEDIUM | Cisco Access Point Software Command Injection Vulnerability |
| CVE-2023-20029 | 4.4 MEDIUM | Cisco IOS XE Software Privilege Escalation Vulnerability |
| CVE-2023-20059 | 4.3 MEDIUM | Cisco DNA Center Information Disclosure Vulnerability |
| CVE-2023-20107 | Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Low-Entro |
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