Vulnerability Details : CVE-2023-35173
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.
Vulnerability category: BypassGain privilege
Products affected by CVE-2023-35173
- cpe:2.3:a:nextcloud:end-to-end_encryption:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-35173
0.08%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 35 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-35173
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
NIST | |
|
5.7
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H |
2.1
|
3.6
|
GitHub, Inc. |
CWE ids for CVE-2023-35173
-
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.Assigned by: security-advisories@github.com (Secondary)
References for CVE-2023-35173
-
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-x7c7-v5r3-mg37
End-to-End encrypted file-drops can be made inaccessible · Advisory · nextcloud/security-advisories · GitHubVendor Advisory
-
https://hackerone.com/reports/1914115
Nextcloud | Report #1914115 - End-to-end encrypted file-drops can be made inaccessible | HackerOneThird Party Advisory
-
https://github.com/nextcloud/end_to_end_encryption/pull/435
Adapt filedrop to v1.2 by artonge · Pull Request #435 · nextcloud/end_to_end_encryption · GitHubPatch
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