CVE-2020-26282— Template Injection in BrowserUp Proxy
Quick assessment
Affected
browserup browserup-proxy
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.
Browserup Browserup Proxy是美国Browserup公司的一款用于监视，测试和操纵Web应用程序的网络流量和性能的软件。 BrowserUp Proxy 存在注入漏洞，攻击者可利用该漏洞可以注入任意Java EL表达式，从而导致未经身份验证的远程代码执行(RCE)漏洞。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2020-26282
Vulnerability Information
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Vulnerability Title
Template Injection in BrowserUp Proxy
Source: CVE Program / CVE List V5
Vulnerability Description
BrowserUp Proxy allows you to manipulate HTTP requests and responses, capture HTTP content, and export performance data as a HAR file. BrowserUp Proxy works well as a standalone proxy server, but it is especially useful when embedded in Selenium tests. A Server-Side Template Injection was identified in BrowserUp Proxy enabling attackers to inject arbitrary Java EL expressions, leading to unauthenticated Remote Code Execution (RCE) vulnerability. This has been patched in version 2.1.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
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
BrowserUp Proxy 注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Browserup Browserup Proxy是美国Browserup公司的一款用于监视，测试和操纵Web应用程序的网络流量和性能的软件。 BrowserUp Proxy 存在注入漏洞，攻击者可利用该漏洞可以注入任意Java EL表达式，从而导致未经身份验证的远程代码执行(RCE)漏洞。
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 |
|---|---|---|---|---|
| browserup | browserup-proxy | < 2.1.2 | - |
|
II. Public POCs for CVE-2020-26282
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2020-26282 (1)
Vendor Advisories for CVE-2020-26282 (1)
Other References for CVE-2020-26282 (2)
-
https://github.com/browserup/browserup-proxy/releases/tag/v2.1.2 x_refsource_MISC
-
https://securitylab.github.com/research/bean-validation-RCE x_refsource_MISC
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V. Comments for CVE-2020-26282
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