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CVE-2020-5397— CSRF Attack via CORS Preflight Requests with Spring MVC or Spring WebFlux

Quick assessment

Affected
Spring Spring Framework
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.

Pivotal Software Spring Framework是美国Pivotal Software公司的一套开源的Java、JavaEE应用程序框架。该框架可帮助开发人员构建高质量的应用。 Pivotal Software Spring Framework 5.2.3之前的5.2.x版本中存在跨站请求伪造漏洞。该漏洞源于WEB应用未充分验证请求是否来自可信用户。攻击者可利用该漏洞通过受影响客户端向服务器发送非预期的请求。

AI Predicted 5.9 Difficulty: Moderate EPSS 2.43% · P84

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2020-5397

Vulnerability Information
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Vulnerability Title
CSRF Attack via CORS Preflight Requests with Spring MVC or Spring WebFlux
Source: CVE Program / CVE List V5
Vulnerability Description
Spring Framework, versions 5.2.x prior to 5.2.3 are vulnerable to CSRF attacks through CORS preflight requests that target Spring MVC (spring-webmvc module) or Spring WebFlux (spring-webflux module) endpoints. Only non-authenticated endpoints are vulnerable because preflight requests should not include credentials and therefore requests should fail authentication. However a notable exception to this are Chrome based browsers when using client certificates for authentication since Chrome sends TLS client certificates in CORS preflight requests in violation of spec requirements. No HTTP body can be sent or received as a result of this attack.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
跨站请求伪造(CSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Pivotal Software Spring Framework 跨站请求伪造漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Pivotal Software Spring Framework是美国Pivotal Software公司的一套开源的Java、JavaEE应用程序框架。该框架可帮助开发人员构建高质量的应用。 Pivotal Software Spring Framework 5.2.3之前的5.2.x版本中存在跨站请求伪造漏洞。该漏洞源于WEB应用未充分验证请求是否来自可信用户。攻击者可利用该漏洞通过受影响客户端向服务器发送非预期的请求。
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
Spring Spring Framework 5.2 ~ v5.2.3.RELEASE -

II. Public POCs for CVE-2020-5397

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III. Intelligence Information for CVE-2020-5397

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Vendor Advisories for CVE-2020-5397 (6)

Other References for CVE-2020-5397 (1)

IV. Related Vulnerabilities

Same product: Spring Framework
Same vendor: Spring
Same weakness: CWE-352

V. Comments for CVE-2020-5397

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