vBulletin through 5.3.x on Windows allows remote PHP code execution because a require_once call is reachable with an unauthenticated request that can include directory traversal sequences to specify an arbitrary pathname, and because ../ traversal is blocked but ..\ traversal is not blocked. For example, an attacker can make an invalid HTTP request containing PHP code, and then make an index.php?routestring= request with enough instances of ".." to reach an Apache HTTP Server log file.
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2017-12-14T00:00:00

Updated: 2024-08-05T20:59:17.456Z

Reserved: 2017-12-13T00:00:00

Link: CVE-2017-17671

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2017-12-14T00:29:00.217

Modified: 2020-08-14T18:26:00.053

Link: CVE-2017-17671

cve-icon Redhat

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