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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.4760 Confluence Server and Data Center Security Advisory - 2019-12-18 - CVE-2019-15006 23 December 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Confluence Server and Data Center Publisher: Atlassian Operating System: UNIX variants (UNIX, Linux, OSX) Windows Impact/Access: Modify Arbitrary Files -- Remote/Unauthenticated Access Confidential Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2019-15006 Original Bulletin: https://confluence.atlassian.com/doc/confluence-security-advisory-2019-12-18-982324349.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 This email refers to the advisory found at https://confluence.atlassian.com/doc/confluence-security-advisory-2019-12-18-982324349.html . CVE ID: * CVE-2019-15006. Product: Confluence Server and Data Center. Affected Confluence Server and Data Center product versions: 6.11.0 <= version < 6.13.10 6.12.0 <= version < 6.13.10 6.13.0 <= version < 6.13.10 6.14.0 <= version < 6.15.10 6.15.0 <= version < 6.15.10 7.0.1 <= version < 7.0.5 7.1.0 <= version < 7.1.2 version < 7.2.0 Fixed Confluence Server and Data Center product versions: * for 6.11.x, Confluence Server and Data Center 6.13.10 has been released with a fix for this issue. * for 6.12.x, Confluence Server and Data Center 6.13.10 has been released with a fix for this issue. * for 6.13.x, Confluence Server and Data Center 6.13.10 has been released with a fix for this issue. * for 6.14.x, Confluence Server and Data Center 6.15.10 has been released with a fix for this issue. * for 6.15.x, Confluence Server and Data Center 6.15.10 has been released with a fix for this issue. * for 7.0.x, Confluence Server and Data Center 7.0.5 has been released with a fix for this issue. * for 7.1.x, Confluence Server and Data Center 7.1.2 has been released with a fix for this issue. * for 7.2.x, Confluence Server and Data Center 7.2.0 has been released with a fix for this issue. Summary: This advisory discloses a medium severity security vulnerability. Versions of Confluence Server and Data Center are affected by this vulnerability. Customers who have upgraded Confluence Server and Data Center to version 6.13.10 or 6.15.10 or 7.0.5 or 7.1.2 or 7.2.0 are not affected. Customers who have downloaded and installed Confluence Server and Data Center >= 6.11.0 but less than 6.13.10 (the fixed version for 6.11.x) or who have downloaded and installed Confluence Server and Data Center >= 6.12.0 but less than 6.13.10 (the fixed version for 6.12.x) or who have downloaded and installed Confluence Server and Data Center >= 6.13.0 but less than 6.13.10 (the fixed version for 6.13.x) or who have downloaded and installed Confluence Server and Data Center >= 6.14.0 but less than 6.15.10 (the fixed version for 6.14.x) or who have downloaded and installed Confluence Server and Data Center >= 6.15.0 but less than 6.15.10 (the fixed version for 6.15.x) or who have downloaded and installed Confluence Server and Data Center >= 7.0.1 but less than 7.0.5 (the fixed version for 7.0.x) or who have downloaded and installed Confluence Server and Data Center >= 7.1.0 but less than 7.1.2 (the fixed version for 7.1.x) or who have downloaded and installed Confluence Server and Data Center less than 7.2.0 (the fixed version for 7.2.x) please upgrade your Confluence Server and Data Center installations immediately to fix this vulnerability. Atlassian Companion Man-in-the-Middle - CVE-2019-15006 Severity: Atlassian rates the severity level of this vulnerability as medium, 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: There was a man-in-the-middle (MITM) vulnerability present in the Confluence Previews plugin in Confluence Server and Confluence Data Center. This plugin was used to facilitate communication with the Atlassian Companion application. The Confluence Previews plugin in Confluence Server and Confluence Data Center communicated with the Companion application via the atlassian-domain-for-localhost-connections-only.com domain name, the DNS A record of which points at 127.0.0.1. Additionally, a signed certificate for the domain was publicly distributed with the Companion application. An attacker in the position to control DNS resolution of their victim could carry out a man-in-the-middle (MITM) attack between Confluence Server (or Confluence Data Center) and the atlassian-domain-for-localhost-connections-only.com domain intended to be used with the Companion application. This certificate has been revoked, however, usage of the atlassian-domain-for-localhost-connections-only.com domain name was still present in Confluence Server and Confluence Data Center. An attacker could perform the described attack by denying their victim access to certificate revocation information, and carry out a man-in-the-middle (MITM) attack to observe files being edited using the Companion application and/or modify them, and access some limited user information. Versions of Confluence Server and Data Center from version 6.11.0 before 6.13.10 (the fixed version for 6.13.x), from version 6.14.0 before 6.15.10 (the fixed version for 6.15.x), from version 7.0.1 before 7.0.5 (the fixed version for 7.0.x), from version 7.1.0 before 7.1.2 (the fixed version for 7.1.x), and from version 7.2.0-beta1 before 7.2.0 (the fixed version for 7.2.x) are affected by this vulnerability. This issue can be tracked at: https://jira.atlassian.com/browse/CONFSERVER-59244 . Fix: To address this issue, we've released the following versions containing a fix: * Confluence Server and Data Center version 6.13.10 * Confluence Server and Data Center version 6.15.10 * Confluence Server and Data Center version 7.0.5 * Confluence Server and Data Center version 7.1.2 * Confluence Server and Data Center version 7.2.0 Remediation: Upgrade Confluence Server and Data Center to version 7.2.0 or higher. The vulnerabilities and fix versions are described above. If affected, you should upgrade to the latest version immediately. If you are running Confluence Server and Data Center 6.11.x and cannot upgrade to 7.2.0, upgrade to version 6.13.10. If you are running Confluence Server and Data Center 6.12.x and cannot upgrade to 7.2.0, upgrade to version 6.13.10. If you are running Confluence Server and Data Center 6.13.x and cannot upgrade to 7.2.0, upgrade to version 6.13.10. If you are running Confluence Server and Data Center 6.14.x and cannot upgrade to 7.2.0, upgrade to version 6.15.10. If you are running Confluence Server and Data Center 6.15.x and cannot upgrade to 7.2.0, upgrade to version 6.15.10. If you are running Confluence Server and Data Center 7.0.x and cannot upgrade to 7.2.0, upgrade to version 7.0.5. If you are running Confluence Server and Data Center 7.1.x and cannot upgrade to 7.2.0, upgrade to version 7.1.2. For a full description of the latest version of Confluence Server and Data Center, see the release notes found at https://confluence.atlassian.com/display/DOC/Confluence+Release+Notes. You can download the latest version of Confluence Server and Data Center from the download centre found at https://www.atlassian.com/software/confluence/download. Support: If you have questions or concerns regarding this advisory, please raise a support request at https://support.atlassian.com/. - -----BEGIN PGP SIGNATURE----- iQJLBAEBCgA1FiEEXh3qw5vbMx/VSutRJCCXorxSdqAFAl38SXsXHHNlY3VyaXR5 QGF0bGFzc2lhbi5jb20ACgkQJCCXorxSdqBeEw/7Ba12Tx9Qp55zijweiN0mtXcE quinn2mWQNzR45e/yruL3JDqcStjThyYL7ahzjlcohdZPq9u23SW27PGWIKln8Yz VHNjzpATJgpXNmZwtiZfm3xSqnNVnJMwLpVp9Shd/PfckwyciyRbkLClybamYmnd Tt9XsNbEr/3oba3YwpBDVUwgZZwYtsGCcrOkUp57q4hE0WH5J6fKRmgm7pWP8/Xi bzlubzp5f8RlL3FICU3xDDLOlJCznOdFdMoNaMnUCyzqISAP1eRWuq8eRVxLlt+C l/qlXGJ2pAc6tuVRtoTvoEIUAIKWPRiKGwKZN/djXoE5heaABJSwt30ut8UNMNel Fdy1gPXwDJtk69jZm9rbW3Tcf3lV3oKPktxwkdJYpgDCpk9Tf2zHh3h7yKoCLqAX IxtHY4WhKXwvoOJCrfJzIpyIZEvAqOBRch/FF/0BFcjUCOHTkQYmfTPyMKBPSM/u 6E/2ZSP1bGiTbLySbho9hKegVxkaU7Yb9FdHMqkeOYizTOmSnp07nqGSFcEmetcw 97SOtBS6JLl7TYBVdbyrocNJZp5qbRcvqnnbKjocRCZC/tdTLLiSMHvQwZjiey5Z izSq8nR8l1nxQKItY7Jur1WfkKkFoMteVWK/eqDKOYtmUoPqL6wNJpXRnJyu6VPL GkNBuF6wAq89EpUbIpY= =FfBs - -----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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