Keybase Desktop Client Cache information disclosure

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

A vulnerability was found in Keybase Desktop Client (affected version not known) and classified as problematic. Affected by this issue is an unknown code block of the component Cache Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. Impacted is confidentiality. CVE summarizes:

Keybase Desktop Client before 5.6.0 on Windows and macOS, and before 5.6.1 on Linux, allows an attacker to obtain potentially sensitive media (such as private pictures) in the Cache and uploadtemps directories. It fails to effectively clear cached pictures, even after deletion via normal methodology within the client, or by utilizing the "Explode message/Explode now" functionality. Local filesystem access is needed by the attacker.

The weakness was shared 02/23/2021. The advisory is available at johnjhacking.com. This vulnerability is handled as CVE-2021-23827 since 01/11/2021. The exploitation is known to be easy. Local access is required to approach this attack. The requirement for exploitation is a simple authentication. The technical details are unknown and an exploit is not available.

Upgrading eliminates this vulnerability.

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VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.2

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

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Exploitinginfoedit

Class: Information disclosure
CWE: CWE-200
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat: 🔍
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Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfoedit

01/11/2021 CVE assigned
02/23/2021 +43 days Advisory disclosed
02/23/2021 +0 days VulDB entry created
03/04/2021 +9 days VulDB last update

Sourcesinfoedit

Advisory: johnjhacking.com
Status: Confirmed
Confirmation: 🔒

CVE: CVE-2021-23827 (🔒)

Entryinfoedit

Created: 02/23/2021 08:23 AM
Updated: 03/04/2021 02:44 PM
Changes: (18) vulnerability_cvss3_nvd_av vulnerability_cvss3_nvd_ac vulnerability_cvss3_nvd_pr vulnerability_cvss3_nvd_ui vulnerability_cvss3_nvd_s vulnerability_cvss3_nvd_c vulnerability_cvss3_nvd_i vulnerability_cvss3_nvd_a vulnerability_cvss2_nvd_av vulnerability_cvss2_nvd_ac vulnerability_cvss2_nvd_au vulnerability_cvss2_nvd_ci vulnerability_cvss2_nvd_ii vulnerability_cvss2_nvd_ai vulnerability_cvss3_meta_basescore vulnerability_cvss3_meta_tempscore vulnerability_cvss2_nvd_basescore vulnerability_cvss3_nvd_basescore
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