CVE-2021-25500
Quick assessment
Affected
Samsung Mobile Samsung Mobile Devices
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.
SAMSUNG Mobile devices是韩国三星（SAMSUNG）公司的一系列的三星移动设备，包括手机、平板等。 SAMSUNG Mobile devices SMR Nov-2021 Release 1 之前版本存在缓冲区错误漏洞，该漏洞源于HDCP LDFW缺少输入验证，攻击者可利用该漏洞覆盖TZASC，从而导致TEE被破坏。
Possible ATT&CK Techniques 2 AI
T1055 · Process Injection T1546.001 · Change Default File Association
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I. Basic Information for CVE-2021-25500
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A missing input validation in HDCP LDFW prior to SMR Nov-2021 Release 1 allows attackers to overwrite TZASC allowing TEE compromise.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
SAMSUNG Mobile devices 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SAMSUNG Mobile devices是韩国三星（SAMSUNG）公司的一系列的三星移动设备，包括手机、平板等。 SAMSUNG Mobile devices SMR Nov-2021 Release 1 之前版本存在缓冲区错误漏洞，该漏洞源于HDCP LDFW缺少输入验证，攻击者可利用该漏洞覆盖TZASC，从而导致TEE被破坏。
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 |
|---|---|---|---|---|
| Samsung Mobile | Samsung Mobile Devices | Select Q(10.0), R(11.0) devices with Exynos 980, 9820, 9830, 2100 chipset ~ SMR Nov-2021 Release 1 | - |
|
II. Public POCs for CVE-2021-25500
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Samsung Mobile · 2021-11-05 · 10 CVEs total
| CVE-2021-25502 | 7.9 HIGH | Samsung SMR 安全漏洞 |
| CVE-2021-25509 | 5.9 MEDIUM | Samsung Flow 输入验证错误漏洞 |
| CVE-2021-25507 | 5.7 MEDIUM | SAMSUNG Flow 安全漏洞 |
| CVE-2021-25501 | 5.7 MEDIUM | Samsung SMR 安全漏洞 |
| CVE-2021-25508 | 5.3 MEDIUM | Samsung SmartThings 安全漏洞 |
| CVE-2021-25503 | 5.0 MEDIUM | Samsung SMR 输入验证错误漏洞 |
| CVE-2021-25506 | 4.0 MEDIUM | Samsung Health 授权问题漏洞 |
| CVE-2021-25504 | 4.0 MEDIUM | SAMSUNG Group Sharing 安全漏洞 |
| CVE-2021-25505 | 3.3 LOW | Samsung Pass 授权问题漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2021-25500
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