CVE-2023-29000 — Improper Certificate Validation in Desktop

CWE-295 — Improper Certificate Validation4 documents4 sources
Severity
6.5MEDIUMNVD
CNA5.4
EPSS
0.1%
top 71.11%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Nextcloud DesktopNextcloud Security-advisories
Timeline
PublishedApr 4

Description

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:NExploitability: 3.9 | Impact: 2.5

Affected Packages2 packages

▶NVDnextcloud/desktop3.0.0 — 3.7.0
▶CVEListV5nextcloud/security-advisories>= 3.0.0, < 3.7.0

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

2
CVEList
Nextcloud Desktop client does not verify received singed certificate in end-to-end encryption↗2023-04-04
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OSV
CVE-2023-29000: The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Server↗2023-04-04
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📋Vendor Advisories

1
Debian
CVE-2023-29000: nextcloud-desktop - The Nextcloud Desktop Client is a tool to synchronize files from Nextcloud Serve...↗2023
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CVE-2023-29000 — Improper Certificate Validation | cvebase