17 October 2018
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT Security Bulletin ASB-2018.0264 Oracle Support Tools 17 October 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Oracle Support Tools Operating System: UNIX variants (UNIX, Linux, OSX) Windows Impact/Access: Denial of Service -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2018-0739 Member content until: Friday, November 16 2018 Reference: ASB-2018.0164 ASB-2018.0159 ESB-2018.2324 ESB-2018.2307 OVERVIEW A vulnerability has been identified in : o OSS Support Tools, versions prior to 18.4  IMPACT The vendor has provided the following information regarding the vulnerability: "This Critical Patch Update contains 1 new security fix for Oracle Support Tools.Â This vulnerability is remotely exploitable without authentication, i.e., may be exploited over a network without requiring user credentials."  "CVE-2018-0739 6.5 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Vulnerability in the OSS Support Tools component of Oracle Support Tools (subcomponent: Services Tools Bundle (OpenSSL)). The supported version that is affected is Prior to 18.4. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise OSS Support Tools. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of OSS Support Tools."  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."  REFERENCES  Oracle Critical Patch Update Advisory - October 2018 https://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html  Text Form of Oracle Critical Patch Update - October 2018 Risk Matrices https://www.oracle.com/technetwork/security-advisory/cpuoct2018verbose-5170927.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: firstname.lastname@example.org 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 iQIVAwUBW8bRQ2aOgq3Tt24GAQi17A/9HYe3Ou2ITDxLG5vD0rpOJnTMdM7QTBm6 RIZMsmFTu22ahoRdKGENt7VRq86psWLlKTFdLS/jrNUgllEpX8rGZ9TpRkbMd6+A KtcWw+BJJe+Q+SkvAyw/Bi7SvMohQbtQpGH6IxHvidsDEBX+420LhjyOw7JuSQUx cb12vKOrOtK91MAGHB3ocfci1vket6QJYk8DWcibMIrosQpknXrFFaRm2beWOeQK H9fxaB0R0elyM4CAwViDh8sKdIHVU4hNYy9BBXWIbQNdRvrl9X68jfxHdZh3tBOH /CHBmQT+znw8k8vN3ZMLwWus4RUm2u4euF27ZAADsCnQuE8HN5kxIPnqlni0F77T JSqFmw7VY2PeRtNd90VjUzSejL2aW0+ckpZFQt+sKjWce0W7lWMyAMgXrrgaevOa hfKB8e/TQXr1M89xvsb6Y8qJyVccKBB2QQYmjmWeOauWo8Qpu0uGwt6JXOH42sT1 TV8W7BbjYCbyuuScAmXlJ8ueBlnjjhRcl4I71OCIONcEPipojPx1XmV0tV8+JoG8 P7uOTu5OI0nBAnkeevP0QV1O4WVJeKocc1cvaMdGVOizk+R39I9euSD4ebeQJwae u73xgpyp9uNVOrooK0ovs0YxVhvlkZVvmwIxkhpoCPyYxG+xzvRrYpT6mR1rHLRC pmIfkXzDtBk= =/fzm -----END PGP SIGNATURE-----