Siemens SINEC INS up to 1.0 SP2 Update 2 SFTP path traversal

Summaryinfo

A vulnerability categorized as critical has been discovered in Siemens SINEC INS up to 1.0 SP2 Update 2. This affects an unknown function of the component SFTP. Executing a manipulation can lead to path traversal. The identification of this vulnerability is CVE-2024-46888. The attack may be launched remotely. There is no exploit available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in Siemens SINEC INS up to 1.0 SP2 Update 2. It has been declared as critical. This vulnerability affects an unknown functionality of the component SFTP. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A vulnerability has been identified in SINEC INS (All versions < V1.0 SP2 Update 3). The affected application does not properly sanitize user provided paths for SFTP-based file up- and downloads. This could allow an authenticated remote attacker to manipulate arbitrary files on the filesystem and achieve arbitrary code execution on the device.

The advisory is shared for download at cert-portal.siemens.com. This vulnerability was named CVE-2024-46888 since 09/12/2024. The exploitation appears to be easy. The attack can be initiated remotely. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 11/14/2024). The MITRE ATT&CK project declares the attack technique as T1006.

Applying the patch 1.0 SP2 Update 3 is able to eliminate this problem.

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Productinfo

Vendor

• Siemens

Name

• SINEC INS

Version

• 1.0 SP2 Update 2

License

• commercial

Website

• Vendor: https://www.siemens.com/

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