CVE-2023-35173

End-to-End encrypted file-drops can be made inaccessible

Description

Nextcloud End-to-end encryption app provides all the necessary APIs to implement End-to-End encryption on the client side. By providing an invalid meta data file, an attacker can make previously dropped files inaccessible. It is recommended that the Nextcloud End-to-end encryption app is upgraded to version 1.12.4 that contains the fix.

Category

5.7
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.18%
Vendor Advisory github.com
Affected: nextcloud security-advisories
Published at:
Updated at:

References

Link Tags
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-x7c7-v5r3-mg37 vendor advisory
https://github.com/nextcloud/end_to_end_encryption/pull/435 patch
https://hackerone.com/reports/1914115 third party advisory

Frequently Asked Questions

What is the severity of CVE-2023-35173?
CVE-2023-35173 has been scored as a medium severity vulnerability.
How to fix CVE-2023-35173?
To fix CVE-2023-35173, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-35173 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-35173 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-35173?
CVE-2023-35173 affects nextcloud security-advisories.
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