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Cleartext storage of session identifier

High
ohader published GHSA-954j-f27r-cj52 Nov 17, 2020

Package

composer typo3/cms-core (Composer)

Affected versions

9.0.0-9.5.22, 10.0.0-10.4.9

Patched versions

9.5.23, 10.4.10

Description

Meta

  • CVSS: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C (7.5)
  • CWE-312

Problem

User session identifiers were stored in cleartext - without processing of additional cryptographic hashing algorithms. This vulnerability cannot be exploited directly and occurs in combination with a chained attack - like for instance SQL injection in any other component of the system.

Solution

Update to TYPO3 versions 9.5.23 or 10.4.10 that fix the problem described.

Credits

Thanks to TYPO3 security team member Helmut Hummel who reported this issue and to TYPO3 core & security team members Benni Mack & Oliver Hader as well as TYPO3 contributor Markus Klein who fixed the issue.

References

Severity

High

CVE ID

CVE-2020-26228

Weaknesses

No CWEs

Credits