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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.1680 Apache Ant insecure temporary file vulnerability 14 May 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Ant Publisher: Apache Operating System: Windows UNIX variants (UNIX, Linux, OSX) Impact/Access: Modify Arbitrary Files -- Existing Account Access Confidential Data -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2020-1945 Original Bulletin: https://ant.apache.org/security.html Comment: This advisory references vulnerabilities in products which run on platforms other than Windows or UNIX variants (UNIX, Linux, OSX). It is recommended that administrators running check for an updated version of the software for their operating system. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 CVE-2020-1945: Apache Ant insecure temporary file vulnerability Severity: Medium Vendor: The Apache Software Foundation Versions Affected: Apache Ant 1.1 to 1.9.14 and 1.10.0 to 1.10.7 Description: Apache Ant uses the default temporary directory identified by the Java system property java.io.tmpdir for several tasks and may thus leak sensitive information. The fixcrlf and replaceregexp tasks also copy files from the temporary directory back into the build tree allowing an attacker to inject modified source files into the build process. Mitigation: Ant users of versions 1.1 to 1.9.14 and 1.10.0 to 1.10.7 should set the java.io.tmpdir system property to point to a directory only readable and writable by the current user prior to running Ant. Users of versions 1.9.15 and 1.10.8 can use the Ant property ant.tmpfile instead. Users of Ant 1.10.8 can rely on Ant protecting the temporary files if the underlying filesystem allows it, but we still recommend using a private temporary directory instead. Credit: This issue was discovered by Mike Salvatore of the Ubuntu Security Team. References: https://ant.apache.org/security.html - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAl68InYACgkQohFa4V9ri3JMuwCeJCxfVbb0FX7oVgzUpskGH28u ZIYAoLDKeuyh585wmuiCySIj5EW4hYch =KIJP - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. 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). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBXrx05GaOgq3Tt24GAQgkkRAAl97kpBmjRPOkhrN29k5P/xGWmgK8fu9W ASjw5hZ3Ae9yuSbTJVv2+KNsSa1mZwBFuorCEMR2KfGmkUcRw88z1JFiNgXUza77 ByYx5l9IN2X4lXBLzyLxVKoYAUOYygA8jpLK8WThKgjuLZ8ZVxfB1Ilzad57OjYF 0jku3KDdd1bGT7TVJkjVQJ9gbDq2eA3hb+TPqo9K9iDsYWNtAh2lpISgomEmScfp xPw6+k/na8UXnGa/7o09H/y9sOXkL0s+BF2Fmj6DGeFK2Uix5hhYJWVENBLlNdNe A3fYRTPoZ8Nd19rUkQ7sWlL2leb50XSyamsyX0IIB2nggCFPMywJ1X7rhKjBjVrO bePZ0FPLZeKXPutvFFbe/n0YtCkEAPLJeaPJSG7L8EIRG1WpDqOr28kL37k+OuiM Pwybm27qMXge3hC6TP2kFmh3bGtnbev/nYHuvUJaEBv1dfKQonbgGfKO4zoY3HQf X2On63P+G1YZfXiexGI/TKJfsQtBi/t0u2KgmXG4F5n5Cr6GOY7nspJN0Xs1JsP2 HTbh279IkKj3Vw9+YBYCyJ7cfv6jBIyK+4HbTKlqf57jkwNFCksYhtnhEHqOPq1K 2iusj5hGEFuyFbtSkmzTAPVKCUROv7bXg139j/ESqO6OgLXy5zMmFkBhYuJsaRYS 5IxKBHwKQ9s= =1td+ -----END PGP SIGNATURE-----