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  1. Confluence Data Center
  2. CONFSERVER-59733

Protection Mechanism Failure in file downloading in Companion - CVE-2020-4020

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      The file downloading functionality in the Atlassian Companion App before version 1.0.0 allows remote attackers, who control a Confluence Server instance that the Companion App is connected to, execute arbitrary .exe files via a Protection Mechanism Failure.

      Acknowledgements

      Credit for finding this vulnerability goes to Johannes Hatting (UFST).

            [CONFSERVER-59733] Protection Mechanism Failure in file downloading in Companion - CVE-2020-4020

            Security Metrics Bot added a comment -

            This is an independent assessment and you should evaluate its applicability to your own IT environment.
            CVSS v3 score: 8.4 => High severity

            Exploitability Metrics

            Attack Vector Network
            Attack Complexity Low
            Privileges Required High
            User Interaction Required

            Scope Metric

            Scope Changed

            Impact Metrics

            Confidentiality High
            Integrity High
            Availability High

            https://asecurityteam.bitbucket.io/cvss_v3/#CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H

            Security Metrics Bot added a comment - This is an independent assessment and you should evaluate its applicability to your own IT environment. CVSS v3 score: 8.4 => High severity Exploitability Metrics Attack Vector Network Attack Complexity Low Privileges Required High User Interaction Required Scope Metric Scope Changed Impact Metrics Confidentiality High Integrity High Availability High https://asecurityteam.bitbucket.io/cvss_v3/#CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H

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