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CVE-2023-34335

Quick assessment

Affected
AMI MegaRAC_SPx
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.

BMC AMI（BMC Automated Mainframe Intelligence）是美国BMC公司的一个自动化大型机智能解决方案。 BMC AMI存在安全漏洞，该漏洞源于允许未经身份验证的主机写入主机SPI闪存，绕过安全启动保护，可能会导致完整性丢失或拒绝服务。

CVSS 7.7 · High EPSS 0.39% · P31

Possible ATT&CK Techniques 1 AI

T1055 · Process Injection
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I. Basic Information for CVE-2023-34335

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
AMI BMC contains a vulnerability in the IPMI handler, where an unauthenticated host is allowed to write to a host SPI flash, bypassing secure boot protections. An exploitation of this vulnerability may lead to a loss of integrity or denial of service.  
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用候选路径或通道进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
BMC AMI 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
BMC AMI（BMC Automated Mainframe Intelligence）是美国BMC公司的一个自动化大型机智能解决方案。 BMC AMI存在安全漏洞，该漏洞源于允许未经身份验证的主机写入主机SPI闪存，绕过安全启动保护，可能会导致完整性丢失或拒绝服务。
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
AMI MegaRAC_SPx 13.0 ~ 13.5 -

II. Public POCs for CVE-2023-34335

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III. Intelligence Information for CVE-2023-34335

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Other References for CVE-2023-34335 (1)

Same Patch Batch · AMI · 2023-06-12 · 8 CVEs total

CVE-2023-34336 8.1 HIGH BMC AMI 安全漏洞
CVE-2023-34341 7.2 HIGH BMC AMI 缓冲区错误漏洞
CVE-2023-34343 7.2 HIGH BMC AMI 操作系统命令注入漏洞
CVE-2023-34334 7.2 HIGH BMC AMI 操作系统命令注入漏洞
CVE-2023-34345 6.5 MEDIUM BMC AMI 路径遍历漏洞
CVE-2023-34342 6.0 MEDIUM BMC AMI 路径遍历漏洞
CVE-2023-34344 5.3 MEDIUM A vulnerability in the IPMI handler, where an unauthorized attacker can use certain oracle

IV. Related Vulnerabilities

Same product: MegaRAC_SPx
Same vendor: AMI
Same weakness: CWE-288

V. Comments for CVE-2023-34335

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