Nextcloud Server up to 19.0.10/20.0.9/21.0.1 Brute-Force Protection excessive authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.6$0-$5k0.00

Summaryinfo

A vulnerability has been found in Nextcloud Server up to 19.0.10/20.0.9/21.0.1 and classified as problematic. This affects an unknown part of the component Brute-Force Protection. This manipulation causes excessive authentication. This vulnerability appears as CVE-2021-22915. The attack may be initiated remotely. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Nextcloud Server up to 19.0.10/20.0.9/21.0.1 (Cloud Software). It has been declared as problematic. Affected by this vulnerability is an unknown part of the component Brute-Force Protection. The manipulation with an unknown input leads to a excessive authentication vulnerability. The CWE definition for the vulnerability is CWE-307. The product does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame, making it more susceptible to brute force attacks. As an impact it is known to affect confidentiality.

The weakness was presented 06/12/2021 as NC-SA-2021-009. The advisory is shared at nextcloud.com. This vulnerability is known as CVE-2021-22915. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1110.001 for this issue.

Upgrading to version 19.0.11, 20.0.10 or 21.0.2 eliminates this vulnerability.

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Productinfo

Type

Name

Version

License

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: Excessive authentication
CWE: CWE-307 / CWE-799 / CWE-400
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: Nextcloud Server 19.0.11/20.0.10/21.0.2

Timelineinfo

01/06/2021 🔍
06/12/2021 +156 days 🔍
06/12/2021 +0 days 🔍
06/14/2021 +2 days 🔍

Sourcesinfo

Advisory: NC-SA-2021-009
Status: Confirmed

CVE: CVE-2021-22915 (🔍)
GCVE (CVE): GCVE-0-2021-22915
GCVE (VulDB): GCVE-100-176893

Entryinfo

Created: 06/12/2021 06:55
Updated: 06/14/2021 07:24
Changes: 06/12/2021 06:55 (39), 06/14/2021 07:24 (5)
Complete: 🔍
Cache ID: 216::103

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