DokuWiki up to 2018-04-22a CSV Export admin.php csv injection ⚔ [Disputed]

Summaryinfo

A vulnerability labeled as critical has been found in DokuWiki up to 2018-04-22a. Affected by this vulnerability is an unknown functionality in the library /lib/plugins/usermanager/admin.php of the component CSV Export. Such manipulation leads to input validation. This vulnerability is listed as CVE-2018-15474. The attack may be performed from remote. There is no available exploit. The presence of this vulnerability remains uncertain at this time.

Detailsinfo

A vulnerability was found in DokuWiki up to 2018-04-22a (Content Management System) and classified as critical. Affected by this issue is an unknown part in the library /lib/plugins/usermanager/admin.php of the component CSV Export. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-1236. The product saves user-provided information into a Comma-Separated Value (CSV) file, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as a command when the file is opened by a spreadsheet product. Impacted is confidentiality, integrity, and availability. CVE summarizes:

** DISPUTED ** CSV Injection (aka Excel Macro Injection or Formula Injection) in /lib/plugins/usermanager/admin.php in DokuWiki 2018-04-22a and earlier allows remote attackers to exfiltrate sensitive data and to execute arbitrary code via a value that is mishandled in a CSV export. NOTE: the vendor has stated "this is not a security problem in DokuWiki."

The bug was discovered 09/06/2018. The weakness was presented 09/07/2018 as not defined mailinglist post (Full-Disclosure). The advisory is shared for download at seclists.org. This vulnerability is handled as CVE-2018-15474 since 08/17/2018. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

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. The real existence of this vulnerability is still doubted at the moment. By approaching the search of inurl:lib/plugins/usermanager/admin.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.

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Productinfo

Type

• Content Management System

Name

• DokuWiki

Version

• 2018-04-22a

License

• open-source

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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