PT-2021-21744 · Nextcloud · Nextcloud Richdocuments

Lukasreschke · Published 2021-09-07 · Updated 2021-09-14 · CVE-2021-37629

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Nextcloud Richdocuments versions prior to 3.8.4 Nextcloud Richdocuments versions prior to 4.2.1

Description Nextcloud Richdocuments is an open source collaborative office suite. In affected versions, there is a lack of rate limiting on the "Richdocuments OCS endpoint". This may have allowed an attacker to enumerate potentially valid share tokens.

Recommendations For versions prior to 3.8.4, upgrade to version 3.8.4 to resolve the issue. For versions prior to 4.2.1, upgrade to version 4.2.1 to resolve the issue. For users unable to upgrade, disable the Richdocuments application as a temporary workaround.

Fix

Information Disclosure

Allocation of Resources Without Limits

Weakness Enumeration

CWE-200

CWE-770

Related Identifiers

CVE-2021-37629

GHSA-GVVR-H36P-8MJX

Affected Products

Nextcloud Richdocuments

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2021-37629 · Security Note
• https://osv.dev/vulnerability/CVE-2021-37629 · Vendor Advisory
• https://github.com/nextcloud/richdocuments/pull/1663 · Note
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-gvvr-h36p-8mjx · Note
• https://t.me/cibsecurity/28385 · Telegram Post
• https://hackerone.com/reports/1258750 · Note