CVE-2023-4818
Quick assessment
Affected
PAX Technology A920
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.
PAX Technology A920是中国百富环球（PAX Technology）公司的一款 Android 移动支付终端。 PAX Technology A920 存在安全漏洞，该漏洞源于版本检查错误，攻击者利用该漏洞可能引导加载程序降级到易受攻击的版本，从而导致本地代码执行。
Possible ATT&CK Techniques 1 AI
T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2023-4818
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
PAX A920 device allows to downgrade bootloader due to a bug in its version check. The signature is correctly checked and only bootloader signed by PAX can be used.
The attacker must have physical USB access to the device in order to exploit this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
输出中的特殊元素转义处理不恰当(注入)
Source: CVE Program / CVE List V5
Vulnerability Title
PAX Technology A920 注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PAX Technology A920是中国百富环球（PAX Technology）公司的一款 Android 移动支付终端。 PAX Technology A920 存在安全漏洞，该漏洞源于版本检查错误，攻击者利用该漏洞可能引导加载程序降级到易受攻击的版本，从而导致本地代码执行。
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 |
|---|---|---|---|---|
| PAX Technology | A920 | 0 ~ A920_AP_Boot_Release_V5.14 | - |
|
II. Public POCs for CVE-2023-4818
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Security Blog Posts for CVE-2023-4818 (3)
-
https://cert.pl/posts/2024/01/CVE-2023-4818/ third-party-advisory
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Android-based PAX POS vulnerabilities (Part 1) - STM Cyber Blog technical-description
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https://cert.pl/en/posts/2024/01/CVE-2023-4818/ third-party-advisory
Other References for CVE-2023-4818 (1)
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https://ppn.paxengine.com/release/development vendor-advisory
Same Patch Batch · PAX Technology · 2024-01-15 · 5 CVEs total
| CVE-2023-42136 | 7.8 HIGH | PAX Technology Android based POS 安全漏洞 |
| CVE-2023-42137 | 7.8 HIGH | PAX Technology Android based POS 后置链接漏洞 |
| CVE-2023-42134 | 6.8 MEDIUM | PAX Technology A920 安全漏洞 |
| CVE-2023-42135 | 6.8 MEDIUM | PAX Technology A920 安全漏洞 |
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V. Comments for CVE-2023-4818
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