Nextcloud Server 17.0.0 Preview improper authorization

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Nextcloud Server 17.0.0. Affected is an unknown function of the component Preview Handler. The manipulation leads to improper authorization. This vulnerability is uniquely identified as CVE-2020-8119. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Nextcloud Server 17.0.0 (Cloud Software). It has been rated as problematic. This issue affects some unknown processing of the component Preview Handler. The manipulation with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is confidentiality. The summary by CVE is:

Improper authorization in Nextcloud server 17.0.0 causes leaking of previews and files when a file-drop share link is opened via the gallery app.

The weakness was disclosed 02/04/2020. The identification of this vulnerability is CVE-2020-8119 since 01/28/2020. The exploitation is known to be easy. The attack may be initiated remotely. Required for exploitation is a simple authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1548.002 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The entries VDB-149690, VDB-149689, VDB-149688 and VDB-149686 are pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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

NVD Base Score: 4.3
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authorization
CWE: CWE-285 / 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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/28/2020 🔍
02/04/2020 +7 days 🔍
02/05/2020 +1 days 🔍
03/28/2024 +1513 days 🔍

Sourcesinfo

Advisory: hackerone.com
Status: Not defined

CVE: CVE-2020-8119 (🔍)
GCVE (CVE): GCVE-0-2020-8119
GCVE (VulDB): GCVE-100-149687
See also: 🔍

Entryinfo

Created: 02/05/2020 11:28
Updated: 03/28/2024 12:50
Changes: 02/05/2020 11:28 (35), 02/05/2020 11:33 (18), 03/28/2024 12:50 (17)
Complete: 🔍
Cache ID: 216::103

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