Systrome Cumilon ISG-600C/ISG-600H/ISG-800W V1.1-R2.1_TRUNK-20181105.bin ISP File isp_update_edit.php des command injection

Summaryinfo

A vulnerability identified as critical has been detected in Systrome Cumilon ISG-600C, ISG-600H and ISG-800W V1.1-R2.1_TRUNK-20181105.bin. Affected is an unknown function of the file network/isp/isp_update_edit.php of the component ISP File Handler. This manipulation of the argument des as part of Parameter causes command injection. This vulnerability appears as CVE-2019-7383. The attack requires local access. There is no available exploit.

Detailsinfo

A vulnerability has been found in Systrome Cumilon ISG-600C, ISG-600H and ISG-800W V1.1-R2.1_TRUNK-20181105.bin and classified as critical. Affected by this vulnerability is some unknown functionality of the file network/isp/isp_update_edit.php of the component ISP File Handler. The manipulation of the argument des as part of a Parameter leads to a command injection vulnerability. The CWE definition for the vulnerability is CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered on Systrome Cumilon ISG-600C, ISG-600H, and ISG-800W devices with firmware V1.1-R2.1_TRUNK-20181105.bin. A shell command injection occurs by editing the description of an ISP file. The file network/isp/isp_update_edit.php does not properly validate user input, which leads to shell command injection via the des parameter.

The bug was discovered 02/12/2019. The weakness was presented 03/21/2019 (Website). It is possible to read the advisory at securityfocus.com. This vulnerability is known as CVE-2019-7383 since 02/04/2019. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 37 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:network/isp/isp_update_edit.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

Vendor

• Systrome Cumilon

Name

• ISG-600C
• ISG-600H
• ISG-800W

Version

• V1.1-R2.1_TRUNK-20181105.bin

CPE 2.3info

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CPE 2.2info

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