MCMS 4.6.5 File Upload FileAction.java Parameter unrestricted upload

Summaryinfo

A vulnerability classified as critical was found in MCMS 4.6.5. The affected element is an unknown function of the file com\mingsoft\basic\action\web\FileAction.java of the component File Upload. Executing a manipulation as part of Parameter can lead to unrestricted upload. The identification of this vulnerability is CVE-2018-18830. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as critical was found in MCMS 4.6.5. This vulnerability affects an unknown function of the file com\mingsoft\basic\action\web\FileAction.java of the component File Upload. The manipulation as part of a Parameter leads to a unrestricted upload vulnerability. The CWE definition for the vulnerability is CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in com\mingsoft\basic\action\web\FileAction.java in MCMS 4.6.5. Since the upload interface does not verify the user login status, you can use this interface to upload files without setting a cookie. First, start an upload of JSP code with a .png filename, and then intercept the data packet. In the name parameter, change the suffix to jsp. In the response, the server returns the storage path of the file, which can be accessed to execute arbitrary JSP code.

The bug was discovered 10/29/2018. The weakness was shared 10/29/2018 (Website). The advisory is available at gitee.com. This vulnerability was named CVE-2018-18830 since 10/28/2018. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1608.002 by the MITRE ATT&CK project.

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.

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

The entry VDB-126155 is related to this item. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

• MCMS

Version

• 4.6.5

CPE 2.3info

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• 🔍

CPE 2.2info

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• 🔍

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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