CVE-2020-7793— Regular Expression Denial of Service (ReDoS)
Quick assessment
Affected
n/a ua-parser-js
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
ua-parser-js是基于JavaScript的User-Agent字符串解析器。可以在浏览器（客户端）或node.js（服务器端）环境中使用。也可以作为jQuery / Zepto插件，Bower / Meteor软件包和RequireJS / AMD模块使用。 ua-parser-js 0.7.23 之前版本存在安全漏洞，该漏洞源于ue -parser-js很容易受到正则表达式在多个正则表达式中的拒绝服务(ReDoS)的攻击。
Possible ATT&CK Techniques 1 AI
T1496 · Resource Hijacking
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I. Basic Information for CVE-2020-7793
Vulnerability Information
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Vulnerability Title
Regular Expression Denial of Service (ReDoS)
Source: CVE Program / CVE List V5
Vulnerability Description
The package ua-parser-js before 0.7.23 are vulnerable to Regular Expression Denial of Service (ReDoS) in multiple regexes (see linked commit for more info).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
ua-parser-js 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ua-parser-js是基于JavaScript的User-Agent字符串解析器。可以在浏览器（客户端）或node.js（服务器端）环境中使用。也可以作为jQuery / Zepto插件，Bower / Meteor软件包和RequireJS / AMD模块使用。 ua-parser-js 0.7.23 之前版本存在安全漏洞，该漏洞源于ue -parser-js很容易受到正则表达式在多个正则表达式中的拒绝服务(ReDoS)的攻击。
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 |
|---|---|---|---|---|
| - | ua-parser-js | unspecified ~ 0.7.23 | - |
|
II. Public POCs for CVE-2020-7793
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2020-7793 (1)
Vendor Advisories for CVE-2020-7793 (4)
-
https://cert-portal.siemens.com/productcert/pdf/ssa-637483.pdf x_refsource_CONFIRM
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https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1050387 x_refsource_MISC
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https://snyk.io/vuln/SNYK-JS-UAPARSERJS-1023599 x_refsource_MISC
Same Patch Batch · n/a · 2020-12-11 · 94 CVEs total
| CVE-2020-28439 | 9.8 CRITICAL | Command Injection |
| CVE-2020-28440 | 9.8 CRITICAL | Command Injection |
| CVE-2020-7791 | 7.5 HIGH | Denial of Service (DoS) |
| CVE-2020-7792 | 7.5 HIGH | Prototype Pollution |
| CVE-2020-7788 | 7.3 HIGH | Prototype Pollution |
| CVE-2020-7789 | 5.6 MEDIUM | Command Injection |
| CVE-2020-7790 | 5.3 MEDIUM | Arbitrary File Read |
| CVE-2020-5949 | F5 BIG-IP 安全漏洞 | |
| CVE-2020-13986 | uIP-Contiki-OS 输入验证错误漏洞 | |
| CVE-2020-19165 | PHPSHE SQL注入漏洞 | |
| CVE-2020-15375 | Brocade Fabric OS 输入验证错误漏洞 | |
| CVE-2020-29455 | SmartyStreets liveAddressPlugin.js 跨站脚本漏洞 | |
| CVE-2020-15376 | Brocade Fabric OS 安全漏洞 | |
| CVE-2020-27730 | F5 NGINX Controller 路径遍历漏洞 | |
| CVE-2020-35175 | Frappe Framework 安全漏洞 | |
| CVE-2020-17437 | Multiple Embedded TCP/IP 缓冲区错误漏洞 | |
| CVE-2020-17438 | Contiki 缓冲区错误漏洞 | |
| CVE-2020-17439 | Contiki 输入验证错误漏洞 | |
| CVE-2020-17440 | Contiki 安全漏洞 | |
| CVE-2020-17441 | picoTCP 缓冲区错误漏洞 |
Showing top 20 of 94 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2020-7793
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