Vulnerability Report

CVE-2023-29000

Title: Nextcloud Desktop Client File Encryption Bypass

Information Disclosure

Proof Of Concept

No public PoC currently indexed for CVE-2023-29000.

CWE Category CWE-295
Published Date Apr 04, 2023
Modified Date Nov 21, 2024
Exploit Status Not Found
Score 5.4 CVSS v3.1
Exploit Probability (EPSS)
0.39%

Vulnerability Summary

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.

Impacted Vendors

A
avira 1
G
google 1
N
nextcloud 1

Reference Links

https://github.com/nextcloud/desktop/pull/4949 https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h82x-98q3-7534 https://hackerone.com/reports/1679267 https://github.com/nextcloud/desktop/pull/4949 https://github.com/nextcloud/security-advisories/security/advisories/GHSA-h82x-98q3-7534 https://hackerone.com/reports/1679267
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
5.4
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
6.5
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2023-29000 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction REQUIRED
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Affected Stack

No specific products linked.