CVE-2020-35217

Vert.x-Web framework v4.0 milestone 1-4 does not perform a correct CSRF verification. Instead of comparing the CSRF token in the request with the CSRF token in the cookie, it compares the CSRF token in the cookie against a CSRF token that is stored in the session. An attacker does not even need to provide a CSRF token in the request because the framework does not consider it. The cookies are automatically sent by the browser and the verification will always succeed, leading to a successful CSRF attack.

CVSS v3.0 8.8 HIGH
CVSS v2.0 6.8 MEDIUM

8.8^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/vert-x3/vertx-web/pull/1613	Patch Third Party Advisory

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:eclipse:vert.x-web:4.0.0:milestone1::::::
	cpe:2.3:a:eclipse:vert.x-web:4.0.0:milestone2::::::
	cpe:2.3:a:eclipse:vert.x-web:4.0.0:milestone3::::::
	cpe:2.3:a:eclipse:vert.x-web:4.0.0:milestone4::::::

Information

Published : 2021-01-20 05:15

Updated : 2021-02-02 07:50

NVD link : CVE-2020-35217

Mitre link : CVE-2020-35217

JSON object : View

CWE

CWE-352

Cross-Site Request Forgery (CSRF)

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Products Affected

eclipse

vert.x-web

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