PT-2018-16180 · Nextcloud+2 · Nextcloud Server+2

Noumar · Published 2018-06-19 · Updated 2023-02-28 · CVE-2018-3761

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Name of the Vulnerable Software and Affected Versions Nextcloud Server versions prior to 12.0.8 Nextcloud Server versions prior to 13.0.3

Description The issue is related to improper authentication on the OAuth2 token endpoint. It involves missing checks that could potentially allow handing out new tokens if the OAuth2 client was partly compromised.

Recommendations For versions prior to 12.0.8, update to version 12.0.8 or later. For versions prior to 13.0.3, update to version 13.0.3 or later.

Fix

Improper Authentication

Weakness Enumeration

CWE-287

Related Identifiers

ALT-PU-2018-1913

CVE-2018-3761

OPENSUSE-SU-2018_1924-1

Affected Products

Alt Linux

Nextcloud Server

Suse

References · 15

• https://errata.altlinux.org/ALT-PU-2018-1913 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-3762 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2018-3761 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16463 · Security Note
• https://osv.dev/vulnerability/CVE-2018-3761 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-3761 · Security Note
• https://nextcloud.com/security/advisory/?id=nc-sa-2018-003 · Vendor Advisory
• https://lists.opensuse.org/archives/list/[e-mail]/thread/RSHDIDRMLM7RS77R7KSNDMLMB2B2ZALH · Note
• https://hackerone.com/reports/343111 · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-3761 · Note
• https://suse.com/security/cve/CVE-2018-3762.html · Note
• https://packages.altlinux.org/ru/vuln/CVE-2018-3761 · Note
• https://bugzilla.suse.com/1100343 · Note
• https://suse.com/security/cve/CVE-2018-3761.html · Note
• https://bugzilla.suse.com/1100344 · Note