Google Android up to 8.1 Attachment.java Attachment path traversal

Summaryinfo

A vulnerability marked as critical has been reported in Google Android up to 8.1. This issue affects the function Attachment of the file Attachment.java. The manipulation leads to path traversal. This vulnerability is referenced as CVE-2018-9459. Remote exploitation of the attack is possible. No exploit is available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Google Android up to 8.1 (Smartphone Operating System). This issue affects the function Attachment of the file Attachment.java. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In Attachment of Attachment.java and getFilePath of EmlAttachmentProvider.java, there is a possible Elevation of Privilege due to a path traversal error. This could lead to a remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Product: Android Versions: Android-6.0 Android-6.0.1 Android-7.0 Android-7.1.1 Android-7.1.2 Android-8.0 Android-8.1 Android ID: A-66230183.

The bug was discovered 08/06/2018. The weakness was published 11/06/2018 (Website). It is possible to read the advisory at securitytracker.com. The identification of this vulnerability is CVE-2018-9459 since 04/05/2018. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 06/04/2023). It is expected to see the exploit prices for this product increasing in the near future.The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 92 days. During that time the estimated underground price was around $25k-$100k.

Applying a patch is able to eliminate this problem.

Similar entries are available at VDB-125980, VDB-125981, VDB-125982 and VDB-125984. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Smartphone Operating System

Vendor

• Google

Name

• Android

Version

• 6.0
• 6.0.1
• 7.0
• 7.1.1
• 7.1.2
• 8.0
• 8.1

License

• free

Website

• Vendor: https://www.google.com/

CPE 2.3info

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CPE 2.2info

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