OpenKM up to 6.3.7 JSP File /okm:root Export unrestricted upload

Summaryinfo

A vulnerability classified as critical was found in OpenKM up to 6.3.7. Impacted is an unknown function of the file /okm:root of the component JSP File Handler. Such manipulation of the argument Export leads to unrestricted upload. This vulnerability is uniquely identified as CVE-2019-11445. The attack can be launched remotely. Moreover, an exploit is present.

Detailsinfo

A vulnerability was found in OpenKM up to 6.3.7 and classified as critical. Affected by this issue is an unknown function of the file /okm:root of the component JSP File Handler. The manipulation of the argument Export with an unknown input leads to a unrestricted upload vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

OpenKM 6.3.2 through 6.3.7 allows an attacker to upload a malicious JSP file into the /okm:root directories and move that file to the home directory of the site, via frontend/FileUpload and admin/repository_export.jsp. This is achieved by interfering with the Filesystem path control in the admin's Export field. As a result, attackers can gain remote code execution through the application server with root privileges.

The bug was discovered 03/11/2019. The weakness was disclosed 04/22/2019. This vulnerability is handled as CVE-2019-11445 since 04/21/2019. The attack may be launched remotely. The successful exploitation requires a simple authentication. Technical details as well as a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1608.002.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 42 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.

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Productinfo

Name

• OpenKM

Version

• 6.3.2
• 6.3.3
• 6.3.4
• 6.3.5
• 6.3.6
• 6.3.7

CPE 2.3info

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CPE 2.2info

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