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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT Security Bulletin ASB-2021.0068 Oracle Support Tools Critical Patch Update 21 April 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: OSS Support Tools Operating System: Windows UNIX variants (UNIX, Linux, OSX) Impact/Access: Access Confidential Data -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2021-2303 OVERVIEW Multiple vulnerabilities have been identified in : o OSS Support Tools, versions prior to 2.12.41 [1] IMPACT The vendor has provided the following information regarding the vulnerabilities: "This Critical Patch Update contains 1 new security patch for Oracle Support Tools. This vulnerability is not remotely exploitable without authentication, i.e., may not be exploited over a network without requiring user credentials." [1] CVE-2021-2303 4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N The supported version that is affected is Prior to 2.12.41. Easily exploitable vulnerability allows high privileged attacker with network access via HTTP to compromise OSS Support Tools. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all OSS Support Tools accessible data. Affects: o OSS Support Tools Prior to 2.12.41 MITIGATION Oracle states: "Due to the threat posed by a successful attack, Oracle strongly recommends that customers apply CPU fixes as soon as possible. Until you apply the CPU fixes, it may be possible to reduce the risk of successful attack by blocking network protocols required by an attack. For attacks that require certain privileges or access to certain packages, removing the privileges or the ability to access the packages from users that do not need the privileges may help reduce the risk of successful attack. Both approaches may break application functionality, so Oracle strongly recommends that customers test changes on non-production systems. Neither approach should be considered a long-term solution as neither corrects the underlying problem." [1] REFERENCES [1] Oracle Critical Patch Update Advisory - April 2021 https://www.oracle.com/security-alerts/cpuapr2021.html [2] Text Form of Oracle Critical Patch Update - April 2021 Risk Matrices https://www.oracle.com/security-alerts/cpuapr2021verbose.html AusCERT has made every effort to ensure that the information contained in this document is accurate. However, the decision to use the information described is the responsibility of each user or organisation. 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. =========================================================================== 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 iQIVAwUBYH+JJuNLKJtyKPYoAQhDWA/+NdaeRn2b8MHvq+9BjwXcOKHfAB8QMM/x y+wTciDnCt/VDqKQ9wL2JZ+PYd/RmjXwo37Rt7fTg6Y1FeUBDrHVGQPsmVISPIA8 DcFcvv7kDO638bYiYpl1a7pJUmeUoMEF9IYzq+zNSiFvR2Uli/pdkBBvBt43AYM8 0oddINzEJYcEAu7jjJtvQ+/wk3mCOGFvhpPwboBrh4ELbINO4xe7d/Cx4DBt5GCE 9GtDUMm4DBlTImRrq5tx1tqhASATi1OSztw2W75iEubb84l2OhjRs+xRZwxVz+B8 E5gEcf0h9XZo1Zy4V367h2x1fTlxTI4hw6q2EQOemx47UjUDcjj4WIKCLs9CGhRJ WGUVW0003/Dq6vgNqFCutDESqWtUG70IHUzDC/zzaELnCED4Aq7NGk2KqNHLOP4V rFZcVCWWrpE8cQ+Tw4ftuZXowgH5PQ7HRxU4wjkvMYhSr2YL9MDYTZaJsH2LALCA nL6xXg3skjCprTZsl9/1GKx+tNpchwWLYHAH3BtiNlrAWglAGg+sNhhR+qNrm+6J V7u5cGPsMhKOSWxtCXsBabJ33emTtIuR0/7dxO8VwtxylTglaVW3BzY+u3ADlf77 3eNaKRjgF5mG6yHEEhcciSJmpTVRGf3kfZDkf5muPKflNVaEvBG/vq4+ysPqz/Jf jYFJq0/WW3U= =HBlf -----END PGP SIGNATURE-----