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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.1865 Bitbucket Server security advisory 2019-05-22 24 May 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Atlassian Bitbucket Server Publisher: Atlassian Operating System: Windows UNIX variants (UNIX, Linux, OSX) Impact/Access: Execute Arbitrary Code/Commands -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2019-3397 Original Bulletin: https://confluence.atlassian.com/bitbucketserver/bitbucket-server-security-advisory-2019-05-22-969526871.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 This email refers to the advisory found at https://confluence.atlassian.com/x/V87JOQ . CVE ID: * CVE-2019-3397. Product: Bitbucket Server. Affected Bitbucket Server product versions: 5.13.0 <= version < 5.13.5 5.14.0 <= version < 5.14.3 5.15.0 <= version < 5.5.2 6.0.0 <= version < 6.0.3 6.1.0 <= version < 6.1.1 Fixed Bitbucket Server product versions: * for 5.13.x, Bitbucket Server 5.13.5 has been released with a fix for this issue. * for 5.14.x, Bitbucket Server 5.14.3 has been released with a fix for this issue. * for 5.15.x, Bitbucket Server 5.5.2 has been released with a fix for this issue. * for 6.0.x, Bitbucket Server 6.0.3 has been released with a fix for this issue. * for 6.1.x, Bitbucket Server 6.1.1 has been released with a fix for this issue. Summary: This advisory discloses a critical severity security vulnerability. Versions of Bitbucket Server starting with 5.13.0 before 5.13.6 (the fixed version for 5.13.x), from 5.14.0 before 5.14.4 (fixed version for 5.14.x), from 5.15.0 before 5.15.3 (fixed version for 5.13.x), from 6.0.0 before 6.0.3 (fixed version for 6.0.x), and from 6.1.0 before 6.1.2 (the fixed version for 6.1.x) are affected by this vulnerability. Customers who have upgraded Bitbucket Server to version 5.13.6 or 5.14.4 or 5.15.3 or 6.0.3 or 6.1.2 are not affected. Customers who have downloaded and installed Bitbucket Server >= 5.13.0 but less than 5.13.5 (the fixed version for 5.13.x) or who have downloaded and installed Bitbucket Server >= 5.14.0 but less than 5.14.3 (the fixed version for 5.14.x) or who have downloaded and installed Bitbucket Server >= 5.15.0 but less than 5.5.2 (the fixed version for 5.15.x) or who have downloaded and installed Bitbucket Server >= 6.0.0 but less than 6.0.3 (the fixed version for 6.0.x) or who have downloaded and installed Bitbucket Server >= 6.1.0 but less than 6.1.1 (the fixed version for 6.1.x) please upgrade your Bitbucket Server installations immediately to fix this vulnerability. Path traversal in the migration tool RCE (CVE-2019-3397) Severity: Atlassian rates the severity level of this vulnerability as critical, according to the scale published in our Atlassian severity levels. The scale allows us to rank the severity as critical, high, moderate or low. This is our assessment and you should evaluate its applicability to your own IT environment. Description: Bitbucket Data Center had a path traversal vulnerability in the Data Center migration tool. A remote attacker with authenticated user with admin permissions can exploit this path traversal vulnerability to write files to arbitrary locations which can lead to remote code execution on systems that run a vulnerable version of Bitbucket Data Center. Bitbucket Server versions without a Data Center license are not vulnerable to this vulnerability. Versions of Bitbucket Server starting with 5.13.0 before 5.13.6 (the fixed version for 5.13.x), from 5.14.0 before 5.14.4 (fixed version for 5.14.x), from 5.15.0 before 5.15.3 (fixed version for 5.13.x), from 6.0.0 before 6.0.3 (fixed version for 6.0.x), and from 6.1.0 before 6.1.2 (the fixed version for 6.1.x) are affected by this vulnerability. This issue can be tracked at: https://jira.atlassian.com/browse/BSERV-11706 . Fix: To address this issue, we've released the following versions containing a fix: * Bitbucket Server version 5.13.6 * Bitbucket Server version 5.14.4 * Bitbucket Server version 5.15.3 * Bitbucket Server version 6.0.3 * Bitbucket Server version 6.1.2 Remediation: Upgrade Bitbucket Server to version 6.1.2 or higher. The vulnerabilities and fix versions are described above. If affected, you should upgrade to the latest version immediately. If you are running Bitbucket Server 5.13.x and cannot upgrade to 6.1.2, upgrade to version 5.13.5. If you are running Bitbucket Server 5.14.x and cannot upgrade to 6.1.2, upgrade to version 5.14.3. If you are running Bitbucket Server 5.15.x and cannot upgrade to 6.1.2, upgrade to version 5.5.2. If you are running Bitbucket Server 6.0.x and cannot upgrade to 6.1.2, upgrade to version 6.0.3. For a full description of the latest version of Bitbucket Server, see the release notes found at https://confluence.atlassian.com/display/BitbucketServer/Bitbucket+Server+release+notes. You can download the latest version of Bitbucket Server from the download centre found at https://www.atlassian.com/software/bitbucket/download. Support: If you have questions or concerns regarding this advisory, please raise a support request at https://support.atlassian.com/. - -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEXh3qw5vbMx/VSutRJCCXorxSdqAFAlzl3DEACgkQJCCXorxS dqCoZQ/+NGRDr27asjsEg1d9ft2qC/hl+0B2jFaOg3rJoZYBUyPJUNL59pgayu2x 99/NleRCU12VNK4xenhQGHPwbDXfvAh7eSuWksc0q+gN9VudqVZhnKNKZKajn9H3 pfESjk8e2sEVUEtHOKX4RjYd95VrTwFQdVagyu8fUSkHfQa1DU3sEmYqO67ySH6d R6pxSaEQVhpQgFkZrTYPaHoainIW40lPS9z/1E6C67DVdBElzINKbqr+yVilxJC0 QeUS/aLlAyq5L9sxu0nlLBYw7d+gPaq7GKobT17YtrHnV4kw93mYWWokVZ0q2j8w Hg+RaNdFhXcYIeSYyKQLbqOKsVNDmLB6/iy+ndtC8wVEOQMgwuSu8FW7pNBpuM9N CzlLjvtTyLJQYkCc2f3BRsuMUuPuUBSGqjyjrbDO820Q4r9Rm411aS1ANueYrLaP 3thEdpxYgqqU+eaHWdqPDlKYRAPHWUQ6r+W1JJl1tdHyJg5hUVNGFOb9bRpAwiwD Ndwif9o1zmzt7q9CkTQMbZbPiD7O2S8BqPqdrShuN/Vtkvi6gvL6fi5lQDdE4ws7 1suqiIdYAKgC8/bAS7lIEXU1QCTN0clo6/AU92TqF8wm0yYfDNs/ezy4wU/Otqxd 2pyFfGcyaCqVa9lBoZ0K8CXD9wu3nXd3Rod13cG13YRppMfw8AM= =Q8BS - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). 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