A vulnerability, which was classified as critical, has been found in I and Librarian up to 4.8. This issue affects an unknown code block of the file functions.php. The manipulation of the argument url as part of a Parameter leads to a server-side request forgery vulnerability. Using CWE to declare the problem leads to CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

I, Librarian version 4.8 and earlier contains a SSRF vulnerability in "url" parameter of getFromWeb in functions.php that can result in the attacker abusing functionality on the server to read or update internal resources.

The bug was discovered 03/23/2018. The weakness was shared 03/23/2018 (Website). It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2018-1000138 since 03/23/2018. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit.

By approaching the search of inurl:functions.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.

The entries 114962, 114960 and 114958 are related to this item.

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• I
• Librarian

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• 4.0
• 4.1
• 4.2
• 4.3
• 4.4
• 4.5
• 4.6
• 4.7
• 4.8

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