Vulnerability Report

CVE-2021-37629

Title: Lack of rate limiting in Nextcloud Richdocuments OCS endpoint

Share Token Enumeration

Proof Of Concept

No public PoC currently indexed for CVE-2021-37629.

CWE Category CWE-770
Published Date Sep 07, 2021
Modified Date Nov 21, 2024
Exploit Status Not Found
Score 5.3 CVSS v3.1
Exploit Probability (EPSS)
1.38%

Vulnerability Summary

CVE-2021-37629: 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. It is recommended that the Nextcloud Richdocuments app is upgraded to either 3.8.4 or 4.2.1 to resolve. For users unable to upgrade it is recommended that the Richdocuments application be disabled.

Impacted Vendors

N
nextcloud 1

Reference Links

https://github.com/nextcloud/richdocuments/pull/1663 https://github.com/nextcloud/security-advisories/security/advisories/GHSA-gvvr-h36p-8mjx https://hackerone.com/reports/1258750 https://github.com/nextcloud/richdocuments/pull/1663 https://github.com/nextcloud/security-advisories/security/advisories/GHSA-gvvr-h36p-8mjx https://hackerone.com/reports/1258750
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
5.3
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:N/A:N
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
5.3
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:N/A:N
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
5.0
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:N/C:P/I:N/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2021-37629 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 NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected Stack

No specific products linked.