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CVE-2020-12926

Quick assessment

Affected
n/a AMD's fTPM implementation
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.

AMD Trusted Platform Modules是美国AMD公司的一款符合TMP标准的安全芯片。该芯片可有效保护PC、防止非法用户登录。 Trusted Platform Modules (TPM)存在访问控制错误漏洞，该漏洞源于无法正确跟踪失败关机发生的次数。攻击者可利用该漏洞更改机密信息，修改由TPM中的关键材料签署的可执行文件，或创建拒绝服务的设备。

AI Predicted 6.5 Difficulty: Hard EPSS 0.21% · P12

Possible ATT&CK Techniques 1 AI

T1558 · Steal or Forge Kerberos Tickets
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I. Basic Information for CVE-2020-12926

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The Trusted Platform Modules (TPM) reference software may not properly track the number of times a failed shutdown happens. This can leave the TPM in a state where confidential key material in the TPM may be able to be compromised. AMD believes that the attack requires physical access of the device because the power must be repeatedly turned on and off. This potential attack may be used to change confidential information, alter executables signed by key material in the TPM, or create a denial of service of the device.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
检查时间与使用时间(TOCTOU)的竞争条件
Source: CVE Program / CVE List V5
Vulnerability Title
Trusted Platform Modules 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
AMD Trusted Platform Modules是美国AMD公司的一款符合TMP标准的安全芯片。该芯片可有效保护PC、防止非法用户登录。 Trusted Platform Modules (TPM)存在访问控制错误漏洞，该漏洞源于无法正确跟踪失败关机发生的次数。攻击者可利用该漏洞更改机密信息，修改由TPM中的关键材料签署的可执行文件，或创建拒绝服务的设备。
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
- AMD's fTPM implementation Each Linux distro determines its own version. -

II. Public POCs for CVE-2020-12926

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III. Intelligence Information for CVE-2020-12926

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Other References for CVE-2020-12926 (1)

Same Patch Batch · n/a · 2020-11-12 · 121 CVEs total

CVE-2020-7769 8.6 HIGH Command Injection
CVE-2020-7770 6.5 MEDIUM Prototype Pollution
CVE-2020-27385 MacdonaldRobinson FlexDotnetCMS 访问控制错误漏洞
CVE-2020-8749 Intel Active Management Technology 缓冲区错误漏洞
CVE-2020-12324 Intel Thunderbolt DCH drivers 安全漏洞
CVE-2020-12325 Intel Thunderbolt DCH drivers 缓冲区错误漏洞
CVE-2020-12332 Intel Human Interface Device 安全漏洞
CVE-2020-12333 Intel QAT 安全漏洞
CVE-2020-12335 Intel Processor Identification Utility 安全漏洞
CVE-2020-12331 Intel Unite Cloud Service client 访问控制错误漏洞
CVE-2020-12334 Intel Advisor tools 安全漏洞
CVE-2020-12330 Intel(R) Falcon + UAS AscTec Thermal Viewer 安全漏洞
CVE-2020-12323 Intel ADAS IE 输入验证错误漏洞
CVE-2020-24525 Intel NUCs 安全漏洞
CVE-2020-12337 Intel NUC Kit 缓冲区错误漏洞
CVE-2020-12336 Intel NUC Kit 默认配置问题漏洞
CVE-2020-12320 Intel SCS Add-on for Microsoft SCCM 代码问题漏洞
CVE-2020-12317 Intel PROSet Wireless 缓冲区错误漏洞
CVE-2020-12318 Intel PROSet Wireless 安全漏洞
CVE-2020-12314 Intel PROSet Wireless 输入验证错误漏洞

Showing top 20 of 121 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same vendor: n/a
Same weakness: CWE-367

V. Comments for CVE-2020-12926

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