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CVE-2020-15098

CVE-2020-15098 · Missing Required Cryptographic Step Leading to Sensitive Information Disclosure in TYPO3 CMS

This page contains facts from public vulnerability sources. Check the original advisory before updating.

In TYPO3 CMS greater than or equal to 9.0.0 and less than 9.5.20, and greater than or equal to 10.0.0 and less than 10.4.6, it has been discovered that an internal verification mechanism can be used to generate arbitrary checksums. This allows to inject arbitrary data having a valid cryptographic message authentication code (HMAC-SHA1) and can lead to various attack chains including potential privilege escalation, insecure deserialization & remote code execution. The overall severity of this vulnerability is high based on mentioned attack chains and the requirement of having a valid backend user session (authenticated). This has been patched in versions 9.5.20 and 10.4.6.

CVSS 8.8 · High · EPSS 2.2% · Fix available

Published
Updated

Stack: php

Affected products and versions

  • typo3 cms

    Versions
    • >= 9.0.0, < 9.5.20: Affected
    • >= 10.0.0, 10.4.6: Affected

    No fix published

  • typo3/cms-core Packagist

    Versions
    • v9.0.0
    • v9.1.0
    • v9.2.0
    • v9.2.1
    • v9.3.0
    • v9.3.1
    • v9.3.2
    • v9.3.3
    • v9.4.0
    • v9.5.0
    • v9.5.1
    • v9.5.10
    • v9.5.11
    • v9.5.12
    • v9.5.13
    • v9.5.14
    • v9.5.15
    • v9.5.16
    • v9.5.17
    • v9.5.18
    • v9.5.19
    • v9.5.2
    • v9.5.3
    • v9.5.4
    • v9.5.5
    • v9.5.6
    • v9.5.7
    • v9.5.8
    • v9.5.9
    Affected ranges
    • ECOSYSTEM: ≥ 9.0.0, < 9.5.20

    Update to 9.5.20

  • typo3/cms-core Packagist

    Versions
    • v10.0.0
    • v10.1.0
    • v10.2.0
    • v10.2.1
    • v10.2.2
    • v10.3.0
    • v10.4.0
    • v10.4.1
    • v10.4.2
    • v10.4.3
    • v10.4.4
    • v10.4.5
    Affected ranges
    • ECOSYSTEM: ≥ 10.0.0, < 10.4.6

    Update to 10.4.6

  • typo3/cms Packagist

    Versions
    • v10.0.0
    • v10.1.0
    • v10.2.0
    • v10.2.1
    • v10.2.2
    • v10.3.0
    • v10.4.0
    • v10.4.1
    • v10.4.2
    • v10.4.3
    • v10.4.4
    • v10.4.5
    Affected ranges
    • ECOSYSTEM: ≥ 10.0.0, < 10.4.6

    Update to 10.4.6

  • typo3/cms Packagist

    Versions
    • v9.0.0
    • v9.1.0
    • v9.2.0
    • v9.2.1
    • v9.3.0
    • v9.3.1
    • v9.3.2
    • v9.3.3
    • v9.4.0
    • v9.5.0
    • v9.5.1
    • v9.5.10
    • v9.5.11
    • v9.5.12
    • v9.5.13
    • v9.5.14
    • v9.5.15
    • v9.5.16
    • v9.5.17
    • v9.5.18
    • v9.5.19
    • v9.5.2
    • v9.5.3
    • v9.5.4
    • v9.5.5
    • v9.5.6
    • v9.5.7
    • v9.5.8
    • v9.5.9
    Affected ranges
    • ECOSYSTEM: ≥ 9.0.0, < 9.5.20

    Update to 9.5.20

Original sources

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