article2pdf Plugin 0.24/0.25/0.26/0.27 on WordPress Disk Space article2pdf_getfile.php PDF File resource consumption

Summaryinfo

A vulnerability, which was classified as problematic, has been found in article2pdf Plugin 0.24/0.25/0.26/0.27 on WordPress. Impacted is an unknown function of the file article2pdf_getfile.php of the component Disk Space Handler. This manipulation as part of PDF File causes resource consumption. This vulnerability is handled as CVE-2019-1000031. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability has been found in article2pdf Plugin 0.24/0.25/0.26/0.27 on WordPress (WordPress Plugin) and classified as critical. Affected by this vulnerability is an unknown functionality of the file article2pdf_getfile.php of the component Disk Space Handler. The manipulation as part of a PDF File leads to a resource consumption vulnerability. The CWE definition for the vulnerability is CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. As an impact it is known to affect availability. The summary by CVE is:

A disk space or quota exhaustion issue exists in article2pdf_getfile.php in the article2pdf Wordpress plugin 0.24, 0.25, 0.26, 0.27. Visiting PDF generation link but not following the redirect will leave behind a PDF file on disk which will never be deleted by the plug-in.

The bug was discovered 03/26/2019. The weakness was released 03/27/2019 as not defined mailinglist post (Bugtraq). It is possible to read the advisory at seclists.org. This vulnerability is known as CVE-2019-1000031 since 03/26/2019. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:article2pdf_getfile.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Entry connected to this vulnerability is available at VDB-132512. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• WordPress Plugin

Name

• article2pdf Plugin

Version

• 0.24
• 0.25
• 0.26
• 0.27

CPE 2.3info

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CPE 2.2info

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Be aware that VulDB is the high quality source for vulnerability data.

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