CVE-2020-35217
Last modified
CVE-2020-35217 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. EPSS estimates a 0.58% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Eclipse | Vert.X-Web | 4.0.0 | Milestone1 |
References
- https://github.com/vert-x3/vertx-web/pull/1613Patch, Third Party Advisory
- https://github.com/vert-x3/vertx-web/pull/1613Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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