VDB-122785 · CVE-2018-3775 · Qualys 13234

Nextcloud Server up to 12.0.2 Authentication 2FA 7pk security

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Nextcloud Server up to 12.0.2. It has been classified as problematic. This vulnerability affects unknown code of the component Authentication. This manipulation causes 7pk security (2FA). This vulnerability is registered as CVE-2018-3775. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Nextcloud Server up to 12.0.2 (Cloud Software). It has been declared as problematic. Affected by this vulnerability is an unknown code block of the component Authentication. The manipulation with an unknown input leads to a 7pk security vulnerability (2FA). The CWE definition for the vulnerability is CWE-254. As an impact it is known to affect confidentiality. The summary by CVE is:

Improper Authentication in Nextcloud Server prior to version 12.0.3 would allow an attacker that obtained user credentials to bypass the 2 Factor Authentication.

The bug was discovered 08/03/2018. The weakness was published 08/12/2018 (Website). The advisory is shared at nextcloud.com. This vulnerability is known as CVE-2018-3775 since 12/27/2017. The attack can be launched remotely. The requirement for exploitation is a single authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1211 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 9 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 13234 (Nextcloud Server Improper Authentication Vulnerability (NC-SA-2018-007)).

Upgrading to version 12.0.3 eliminates this vulnerability.

Similar entry is available at VDB-122786. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.4

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

NVD Base Score: 8.8
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

Name: 2FA
Class: 7pk security / 2FA
CWE: CWE-254
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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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Nextcloud Server 12.0.3

Timelineinfo

12/27/2017 🔍
08/03/2018 +218 days 🔍
08/12/2018 +8 days 🔍
08/12/2018 +0 days 🔍
08/13/2018 +1 days 🔍
03/15/2020 +580 days 🔍

Sourcesinfo

Advisory: nextcloud.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-3775 (🔍)
GCVE (CVE): GCVE-0-2018-3775
GCVE (VulDB): GCVE-100-122785
See also: 🔍

Entryinfo

Created: 08/13/2018 07:58
Updated: 03/15/2020 08:22
Changes: 08/13/2018 07:58 (66), 03/15/2020 08:22 (2)
Complete: 🔍
Cache ID: 216::103

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

Discussion

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