CVE-2020-11957
Quick assessment
Affected
n/a n/a
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.
Cypress Semiconductor PSoC Creator BLE是美国赛普拉斯半导体（Cypress Semiconductor）公司的一款集成了蓝牙低功耗（BLE）的可编程嵌入式系统级芯片。 Cypress Semiconductor PSoC Creator 4.2 BLE 3.64之前版本中存在安全特征问题漏洞，该漏洞源于BLE的实现生成了64位而不是128位的随机数。攻击者可利用该漏洞在BLE配对期间实施中间人攻击。
Possible ATT&CK Techniques 2 AI
T1041 · Exfiltration Over C2 Channel T1557 · Adversary-in-the-Middle
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I. Basic Information for CVE-2020-11957
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The Bluetooth Low Energy implementation in Cypress PSoC Creator BLE 4.2 component versions before 3.64 generates a random number (Pairing Random) with significantly less entropy than the specified 128 bits during BLE pairing. This is the case for both authenticated and unauthenticated pairing with both LE Secure Connections as well as LE Legacy Pairing. A predictable or brute-forceable random number allows an attacker (in radio range) to perform a MITM attack during BLE pairing.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Cypress Semiconductor PSoC Creator BLE 安全特征问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cypress Semiconductor PSoC Creator BLE是美国赛普拉斯半导体（Cypress Semiconductor）公司的一款集成了蓝牙低功耗（BLE）的可编程嵌入式系统级芯片。 Cypress Semiconductor PSoC Creator 4.2 BLE 3.64之前版本中存在安全特征问题漏洞，该漏洞源于BLE的实现生成了64位而不是128位的随机数。攻击者可利用该漏洞在BLE配对期间实施中间人攻击。
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 |
|---|---|---|---|---|
| - | n/a | n/a | - |
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II. Public POCs for CVE-2020-11957
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2020-11957 (1)
-
https://www.cypress.com/file/504466/download x_refsource_CONFIRM
Same Patch Batch · n/a · 2020-06-09 · 19 CVEs total
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| CVE-2020-13965 | Roundcube Webmail 跨站脚本漏洞 | |
| CVE-2020-13980 | OpenCart 跨站脚本漏洞 | |
| CVE-2020-13976 | DD-WRT 安全漏洞 | |
| CVE-2020-13977 | Nagios 注入漏洞 | |
| CVE-2020-13978 | Monstra CMS 操作系统命令注入漏洞 | |
| CVE-2020-10757 | Linux kernel 缓冲区错误漏洞 | |
| CVE-2020-13974 | Linux kernel 输入验证错误漏洞 | |
| CVE-2020-13973 | OWASP json-sanitizer 跨站脚本漏洞 | |
| CVE-2020-13964 | Roundcube Webmail 跨站脚本漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2020-11957
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