Nextcloud Richdocuments up to 3.8.3/4.2.0 OCS endpoint information disclosure

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.6$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Nextcloud Richdocuments up to 3.8.3/4.2.0. This affects an unknown function of the component OCS endpoint. This manipulation causes information disclosure. This vulnerability appears as CVE-2021-37629. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Nextcloud Richdocuments up to 3.8.3/4.2.0 (Cloud Software). It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the component OCS endpoint. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality.

The weakness was presented 09/08/2021. The advisory is shared at hackerone.com. This vulnerability is known as CVE-2021-37629. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

Upgrading to version 3.8.4 or 4.2.1 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.6

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Richdocuments 3.8.4/4.2.1
Patch: github.com

Timelineinfo

07/29/2021 🔍
09/07/2021 +40 days 🔍
09/08/2021 +0 days 🔍
09/10/2021 +2 days 🔍

Sourcesinfo

Product: github.com

Advisory: hackerone.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-37629 (🔍)
GCVE (CVE): GCVE-0-2021-37629
GCVE (VulDB): GCVE-100-182113

Entryinfo

Created: 09/08/2021 00:48
Updated: 09/10/2021 09:57
Changes: 09/08/2021 00:48 (22), 09/08/2021 00:49 (19), 09/10/2021 09:55 (2), 09/10/2021 09:57 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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