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  5. CVE-2021-31403

CVE-2021-31403: Information Exposure Through Discrepancy

April 23, 2021 (updated April 30, 2021)

A non-constant-time comparison of CSRF tokens in UIDL request handler in com.vaadin:vaadin-server allows attacker to guess a security token via timing attack.

References

  • nvd.nist.gov/vuln/detail/CVE-2021-31403
  • vaadin.com/security/cve-2021-31403

Code Behaviors & Features

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Affected versions

All versions starting from 7.0.0 before 7.7.24, all versions starting from 8.0.0 before 8.12.3

Fixed versions

  • 7.7.24
  • 8.12.3

Solution

Upgrade to version 7.7.24 or 8.12.3 or above.

Impact 2.5 LOW

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

Learn more about CVSS

Weakness

  • CWE-203: Observable Discrepancy

Source file

maven/com.vaadin/flow-client/CVE-2021-31403.yml

Spotted a mistake? Edit the file on GitLab.

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