CVE-2023-42135
Quick assessment
Affected
PAX Technology A920 Pro
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 PayDroid_8.1.0_Sagittarius_V11.1.45_20230314 及之前版本存在安全漏洞，该漏洞源于可以在刷新特定分区时绕过输入验证，攻击者利用该漏洞可以通过 fastboot 中的 kernel参数注入，以 root 身份执行本地代码。
Possible ATT&CK Techniques 2 AI
T1608 · Stage Capabilities T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2023-42135
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
PAX A920Pro/A50 devices with PayDroid_8.1.0_Sagittarius_V11.1.50_20230614 or earlier can allow local code execution via parameter injection by bypassing the input validation when flashing a specific partition.
The attacker must have physical USB access to the device in order to exploit this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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 安全漏洞
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 PayDroid_8.1.0_Sagittarius_V11.1.45_20230314 及之前版本存在安全漏洞，该漏洞源于可以在刷新特定分区时绕过输入验证，攻击者利用该漏洞可以通过 fastboot 中的 kernel参数注入，以 root 身份执行本地代码。
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 Pro | 0 ~ 11.1.50_20230614 | - |
|
| PAX Technology | A50 | 0 ~ 11.1.50_20230614 | - |
|
II. Public POCs for CVE-2023-42135
| # | POC Description | Source Link | Shenlong Link |
|---|
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Security Blog Posts for CVE-2023-42135 (3)
-
https://cert.pl/posts/2024/01/CVE-2023-4818/ third-party-advisory
-
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-2023-42135 (1)
-
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-2023-4818 | PAX Technology A920 注入漏洞 |
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V. Comments for CVE-2023-42135
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