Schneider Electric U.motion Builder up to 1.3.3 Applet sendmail.php access control

Summaryinfo

A vulnerability was found in Schneider Electric U.motion Builder up to 1.3.3 and classified as critical. The impacted element is an unknown function of the file sendmail.php of the component Applet Handler. Executing a manipulation can lead to access control. This vulnerability is tracked as CVE-2018-7770. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Schneider Electric U.motion Builder up to 1.3.3 (Automation Software). It has been declared as critical. This vulnerability affects an unknown code of the file sendmail.php of the component Applet Handler. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The vulnerability exists within processing of sendmail.php in Schneider Electric U.motion Builder software versions prior to v1.3.4. The applet allows callers to select arbitrary files to send to an arbitrary email address.

The bug was discovered 04/19/2018. The weakness was disclosed 07/03/2018 (Website). The advisory is shared for download at schneider-electric.com. This vulnerability was named CVE-2018-7770 since 03/08/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

The vulnerability was handled as a non-public zero-day exploit for at least 75 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:sendmail.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 1.3.4 eliminates this vulnerability.

The entries VDB-120298, VDB-120285, VDB-120286 and VDB-120287 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Automation Software

Vendor

• Schneider Electric

Name

• U.motion Builder

Version

• 1.3.0
• 1.3.1
• 1.3.2
• 1.3.3

License

• commercial

Website

• Vendor: https://www.schneider-electric.com/

CPE 2.3info

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CPE 2.2info

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Once again VulDB remains the best source for vulnerability data.

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