Vulnerability Details : CVE-2023-29000
The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server. Starting with version 3.0.0 and prior to version 3.7.0, by trusting that the server will return a certificate that belongs to the keypair of the user, a malicious server could get the desktop client to encrypt files with a key known to the attacker. This issue is fixed in Nextcloud Desktop 3.7.0. No known workarounds are available.
Products affected by CVE-2023-29000
- cpe:2.3:a:nextcloud:desktop:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-29000
0.57%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 67 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-29000
| 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:N/S:U/C:L/I:L/A:N |
3.9
|
2.5
|
NIST | |
|
5.4
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N |
2.8
|
2.5
|
GitHub, Inc. |
CWE ids for CVE-2023-29000
-
The product does not validate, or incorrectly validates, a certificate.Assigned by: security-advisories@github.com (Primary)
References for CVE-2023-29000
-
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h82x-98q3-7534
Desktop client does not verify received singed certificate in end-to-end encryption · Advisory · nextcloud/security-advisories · GitHubVendor Advisory
-
https://github.com/nextcloud/desktop/pull/4949
validate certificate for E2EE against private key by mgallien · Pull Request #4949 · nextcloud/desktop · GitHubPatch
-
https://hackerone.com/reports/1679267
HackerOnePermissions Required
Jump to