Nextcloud Server up to 25.0.5/26.0.0 session expiration

CVSS Meta Temp Score
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CTI Interest Score
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5.6$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Nextcloud Server up to 25.0.5/26.0.0. The affected element is an unknown function. This manipulation causes session expiration. This vulnerability is handled as CVE-2023-32318. It is possible to launch the attack on the local host. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Nextcloud Server up to 25.0.5/26.0.0 (Cloud Software) and classified as problematic. Affected by this vulnerability is some unknown functionality. The manipulation with an unknown input leads to a session expiration vulnerability. The CWE definition for the vulnerability is CWE-613. According to WASC, "Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization." As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Nextcloud server provides a home for data. A regression in the session handling between Nextcloud Server and the Nextcloud Text app prevented a correct destruction of the session on logout if cookies were not cleared manually. After successfully authenticating with any other account the previous session would be continued and the attacker would be authenticated as the previously logged in user. It is recommended that the Nextcloud Server is upgraded to 25.0.6 or 26.0.1.

The weakness was released 05/27/2023 as GHSA-q8c4-chpj-6v38. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2023-32318 since 05/08/2023. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 25.0.6 or 26.0.1 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.

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Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.6

VulDB Base Score: 4.2
VulDB Temp Score: 4.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.2
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: Session expiration
CWE: CWE-613
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

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: Server 25.0.6/26.0.1
Patch: github.com

Timelineinfo

05/08/2023 🔍
05/27/2023 +19 days 🔍
05/27/2023 +0 days 🔍
05/27/2023 +0 days 🔍

Sourcesinfo

Advisory: GHSA-q8c4-chpj-6v38
Status: Confirmed

CVE: CVE-2023-32318 (🔍)
GCVE (CVE): GCVE-0-2023-32318
GCVE (VulDB): GCVE-100-230071

Entryinfo

Created: 05/27/2023 08:24
Changes: 05/27/2023 08:24 (51)
Complete: 🔍
Cache ID: 216::103

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