Nextcloud Calendar up to 4.5.2 exposure of sensitive system information due to uncleared debug information

CVSS Meta Temp Score
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CTI Interest Score
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4.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Nextcloud Calendar up to 4.5.2 and classified as problematic. This vulnerability affects unknown code. Executing a manipulation can lead to exposure of sensitive system information due to uncleared debug information. This vulnerability is tracked as CVE-2023-48308. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Nextcloud Calendar up to 4.5.2 (Calendar Software). It has been declared as problematic. This vulnerability affects an unknown code. The manipulation with an unknown input leads to a exposure of sensitive system information due to uncleared debug information vulnerability. The CWE definition for the vulnerability is CWE-1258. The hardware does not fully clear security-sensitive values, such as keys and intermediate values in cryptographic operations, when debug mode is entered. As an impact it is known to affect confidentiality. CVE summarizes:

Nextcloud/Cloud is a calendar app for Nextcloud. An attacker can gain access to stacktrace and internal paths of the server when generating an exception while editing a calendar appointment. It is recommended that the Nextcloud Calendar app is upgraded to 4.5.3

The weakness was disclosed 12/22/2023. The advisory is shared for download at github.com. This vulnerability was named CVE-2023-48308 since 11/14/2023. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592.

Upgrading to version 4.5.3 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

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Vendor

Name

Version

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Website

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: 2.6
VulDB Temp Score: 2.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CNA Base Score: 3.5
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: Exposure of sensitive system information due to uncleared debug information
CWE: CWE-1258 / CWE-200 / CWE-284
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: Calendar 4.5.3
Patch: github.com

Timelineinfo

11/14/2023 🔍
12/21/2023 +37 days 🔍
12/22/2023 +0 days 🔍
01/18/2024 +27 days 🔍

Sourcesinfo

Product: github.com

Advisory: GHSA-fv3c-qvjr-5rv8
Status: Confirmed

CVE: CVE-2023-48308 (🔍)
GCVE (CVE): GCVE-0-2023-48308
GCVE (VulDB): GCVE-100-248812

Entryinfo

Created: 12/22/2023 00:39
Updated: 01/18/2024 07:51
Changes: 12/22/2023 00:39 (48), 12/22/2023 19:41 (2), 01/18/2024 07:46 (2), 01/18/2024 07:51 (12)
Complete: 🔍
Cache ID: 216::103

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