VDB-182135 · CVE-2021-32801 · GCVE-0-2021-32801

Nextcloud Server prior 20.0.12/21.0.4/22.1.0 Encryption-at-Rest log file

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 (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	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.
4.1	$0-$5k	0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Nextcloud Server. This affects an unknown function of the component Encryption-at-Rest. The manipulation leads to log file. This vulnerability is referenced as CVE-2021-32801. Remote exploitation of the attack is possible. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Nextcloud Server (Cloud Software). This issue affects some unknown functionality of the component Encryption-at-Rest. The manipulation with an unknown input leads to a log file vulnerability. Using CWE to declare the problem leads to CWE-532. Information written to log files can be of a sensitive nature and give valuable guidance to an attacker or expose sensitive user information. Impacted is confidentiality.

The weakness was published 09/08/2021. It is possible to read the advisory at hackerone.com. The identification of this vulnerability is CVE-2021-32801. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

Upgrading to version 20.0.12, 21.0.4 or 22.1.0 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.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Cloud Software

Vendor

Nextcloud

Name

Server

License

open-source

Website

Product: https://github.com/nextcloud/server/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Log file
CWE: CWE-532 / CWE-200 / CWE-284
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Server 20.0.12/21.0.4/22.1.0
Patch: github.com

Timelineinfo

05/12/2021 🔍
09/08/2021 +119 days 🔍
09/08/2021 +0 days 🔍
09/10/2021 +2 days 🔍

Sourcesinfo

Product: github.com

Advisory: hackerone.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-32801 (🔍)
GCVE (CVE): GCVE-0-2021-32801
GCVE (VulDB): GCVE-100-182135

Entryinfo

Created: 09/08/2021 07:36
Updated: 09/10/2021 13:07
Changes: 09/08/2021 07:36 (40), 09/10/2021 12:59 (2), 09/10/2021 13:07 (1)
Complete: 🔍
Cache ID: 216::103