VWE-2021-6259 Printable Version

https://www.vaultwiki.org/pages/Book/Documentation/VWE-2021-6259
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- Created by
  pegasus
  on October 25, 2021

Common Name None
VWE-ID VWE-2021-6259
Related Report None
Severity Extreme
Exploit Difficulty NORMAL
Platform XenForo 2.x
Description Denial of Service amplification. A distributed attack by malicious editors can consume all memory allocated to PHP by leveraging massive numbers of template inclusions within complex template fields and saving the affected pages simultaneously. Does not affect Lite versions.

Discovered October 19, 2021
Resolved October 25, 2021
Patches Available 4.1.2 Patch Level 3
4.1.1 Patch Level 8
The versions listed below are known to be affected by this issue. If you are using one of those versions, you should update to a newer release that has no known vulnerabilities.

Common Name	None
VWE-ID	VWE-2021-6259
Related Report	None
Severity	Extreme
Exploit Difficulty	NORMAL
Platform	XenForo 2.x
Description	Denial of Service amplification. A distributed attack by malicious editors can consume all memory allocated to PHP by leveraging massive numbers of template inclusions within complex template fields and saving the affected pages simultaneously. Does not affect Lite versions.
Discovered	October 19, 2021
Resolved	October 25, 2021
Patches Available	4.1.2 Patch Level 3 4.1.1 Patch Level 8