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GHSA-wpcv-5jgp-69f3
No affected components available
Overview
Path Traversal Vulnerability via File Uploads in Genie
Impact
Any Genie OSS users running their own instance and relying on the filesystem to store file attachments submitted to the Genie application may be impacted. Using this technique, it is possible to write a file with any user-specified filename and file contents to any location on the file system that the Java process has write access - potentially leading to remote code execution (RCE).
Genie users who do not store these attachments locally on the underlying file system are not vulnerable to this issue.
Description
Genie's API accepts a multipart/form-data file upload which can be saved to a location on disk. However, it takes a user-supplied filename as part of the request and uses this as the filename when writing the file to disk. Since this filename is user-controlled, it is possible for a malicious actor to manipulate the filename in order to break out of the default attachment storage path and perform path traversal.
Using this technique it is possible to write a file with any user specified name and file contents to any location on the file system that the Java process has write access to.
Patches
This path traversal issue is fixed in Genie OSS v4.3.18. This issue was fixed in https://github.com/Netflix/genie/pull/1216 and https://github.com/Netflix/genie/pull/1217 and a new release with the fix was created. Please, upgrade your Genie OSS instances to the new version.
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker needs basic access or low-level privileges. No user interaction is needed for the attacker to exploit this vulnerability. The vulnerability can affect other systems as well, not just the initial system. There is a high impact on the confidentiality of the information. There is a high impact on the integrity of the data. There is a low impact on the availability of the system.
Active exploitation in the wild has been confirmed. Immediate patching or mitigation is required.
The exploit probability is moderate. The vulnerability is likely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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