user_oidc up to 1.3.2 on Nextcloud channel accessible

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.2$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in user_oidc up to 1.3.2 on Nextcloud. This affects an unknown part. Such manipulation leads to channel accessible. This vulnerability is referenced as CVE-2023-39953. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in user_oidc up to 1.3.2 on Nextcloud. Affected by this issue is an unknown function. The manipulation with an unknown input leads to a channel accessible vulnerability. Using CWE to declare the problem leads to CWE-300. The product does not adequately verify the identity of actors at both ends of a communication channel, or does not adequately ensure the integrity of the channel, in a way that allows the channel to be accessed or influenced by an actor that is not an endpoint. Impacted is confidentiality. CVE summarizes:

user_oidc provides the OIDC connect user backend for Nextcloud, an open-source cloud platform. Starting in version 1.0.0 and prior to version 1.3.3, missing verification of the issuer would have allowed an attacker to perform a man-in-the-middle attack returning corrupted or known token they also have access to. user_oidc 1.3.3 contains a patch. No known workarounds are available.

The weakness was published 08/10/2023 as GHSA-xx3h-v363-q36j. The advisory is available at github.com. This vulnerability is handled as CVE-2023-39953 since 08/07/2023. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1557 by the MITRE ATT&CK project.

Upgrading to version 1.3.3 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.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.2
VulDB Meta Temp Score: 4.2

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

CNA Base Score: 4.8
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

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

Exploitinginfo

Class: Channel accessible
CWE: CWE-300
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: user_oidc 1.3.3
Patch: github.com

Timelineinfo

08/07/2023 🔍
08/10/2023 +3 days 🔍
08/10/2023 +0 days 🔍
09/05/2023 +26 days 🔍

Sourcesinfo

Advisory: GHSA-xx3h-v363-q36j
Status: Confirmed

CVE: CVE-2023-39953 (🔍)
GCVE (CVE): GCVE-0-2023-39953
GCVE (VulDB): GCVE-100-236810

Entryinfo

Created: 08/10/2023 18:19
Updated: 09/05/2023 09:39
Changes: 08/10/2023 18:19 (49), 09/05/2023 09:39 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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