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GHSA-5479-gqqr-f9gjhigh

Typo3 Vulnerable to Cache Poisoning

Impact

Problem Description: A request URL with arbitrary arguments, but still pointing to the home page of a TYPO3 installation can be cached if the configuration option config.prefixLocalAnchors is used with the values "all" or "cached". The impact of this vulnerability is that unfamiliar looking links to the home page can end up in the cache, which leads to a reload of the page in the browser when section links are followed by web page visitors, instead of just directly jumping to the requested section of the page. TYPO3 versions 4.6.x and higher are only affected if the homepage is not a…

Source excerpt · OSV

Affected packages

Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.

typo3/cms Packagist
Affected rangeRecorded fix
From 4.5.0 before 4.5.39Ecosystem versions4.5.39
From 6.2.0 before 6.2.9Ecosystem versions6.2.9
From 7.0.0 before 7.0.2Ecosystem versions7.0.2
From 4.6.0 before 4.6.19Ecosystem versions4.6.19
From 4.7.0 before 4.7.21Ecosystem versions4.7.21
From 6.0.0 before 6.0.15Ecosystem versions6.0.15
From 6.1.0 before 6.1.13Ecosystem versions6.1.13

Version evidence: OSV · GHSA-5479-gqqr-f9gj

View original version evidence (11 explicit versions)

Original source description

Problem Description: A request URL with arbitrary arguments, but still pointing to the home page of a TYPO3 installation can be cached if the configuration option config.prefixLocalAnchors is used with the values "all" or "cached". The impact of this vulnerability is that unfamiliar looking links to the home page can end up in the cache, which leads to a reload of the page in the browser when section links are followed by web page visitors, instead of just directly jumping to the requested section of the page. TYPO3 versions 4.6.x and higher are only affected if the homepage is not a shortcut to a different page.

Solution: Removing the configuration options config.prefixLocalAnchors (and optionally also config.baseUrl) in favor of config.absRefPrefix

Credits: Thanks to Gernot Leitgab who discovered and reported the vulnerability.

References