SCALANCE M875 Web Interface os command injection

Summaryinfo

A vulnerability has been found in SCALANCE M875 and classified as critical. Affected by this issue is some unknown functionality of the component Web Interface. The manipulation leads to os command injection. This vulnerability is documented as CVE-2018-4859. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in SCALANCE M875 (the affected version unknown) and classified as critical. This issue affects an unknown part of the component Web Interface. The manipulation with an unknown input leads to a os command injection vulnerability. Using CWE to declare the problem leads to CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability has been identified in SCALANCE M875 (All versions). An authenticated remote attacker with access to the web interface (443/tcp), could execute arbitrary operating system commands. Successful exploitation requires that the attacker has network access to the web interface. The attacker must be authenticated as administrative user to exploit the security vulnerability. The vulnerability could allow an attacker to execute arbitrary code on the device. At the time of advisory publication no public exploitation of this security vulnerability was known.

The bug was discovered 06/12/2018. The weakness was released 06/26/2018 (Website). It is possible to read the advisory at cert-portal.siemens.com. The identification of this vulnerability is CVE-2018-4859 since 01/02/2018. The exploitation is known to be easy. The attack may be initiated remotely. A simple authentication is necessary for exploitation. The technical details are unknown and an exploit is not publicly available. 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 14 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.

Entries connected to this vulnerability are available at VDB-120012, VDB-120013, VDB-119995 and VDB-119996. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• SCALANCE

Name

• M875

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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