Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.0401 Security Bulletin: Vulnerability in Apache CXF affects WebSphere Application Server (CVE-2019-12406) 4 February 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: WebSphere Application Server WebSphere Application Server Liberty Publisher: IBM Operating System: AIX HP-UX IBM i Linux variants Mac OS Solaris Windows Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2019-12406 Reference: ESB-2019.4157 Original Bulletin: https://www.ibm.com/support/pages/node/1288774 - --------------------------BEGIN INCLUDED TEXT-------------------- Vulnerability in Apache CXF affects WebSphere Application Server (CVE-2019-12406) Security Bulletin Summary There is a denial of service in the Apache CXF library used by WebSphere Application Server. This has been addressed. Vulnerability Details CVEID: CVE-2019-12406 DESCRIPTION: Apache CXF before 3.3.4 and 3.2.11 does not restrict the number of message attachments present in a given message. This leaves open the possibility of a denial of service type attack, where a malicious user crafts a message containing a very large number of message attachments. From the 3.3.4 and 3.2.11 releases, a default limit of 50 message attachments is enforced. This is configurable via the message property "attachment-max-count". CVSS Base score: 5.3 CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/ 170974 for the current score. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L) Affected Products and Versions +------------------------------------+-------------------+ |Affected Product(s) |Version(s) | +------------------------------------+-------------------+ |WebSphere Application Server Liberty|17.0.0.3 - 20.0.0.1| +------------------------------------+-------------------+ |WebSphere Application Server |9.0 | +------------------------------------+-------------------+ Remediation/Fixes The recommended solution is to apply the interim fix, Fix Pack or PTF containing APAR PH19989 for each named product as soon as practical. For WebSphere Application Server and WebSphere Application Server Hypervisor Edition: For Liberty 17.0.0.3-20.0.0.1 using jaxrs-2.0 or jaxrs-2.1 or jaxws-2.2 features: . Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH19989 - --OR-- . Apply Liberty Fix Pack 20.0.0.2 or later (targeted availability 1Q2020). For V9.0.0.0 through 9.0.5.2: . Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH19989 - --OR-- . Apply Fix Pack 9.0.5.3 or later (targeted availability 1Q2020). Additional interim fixes may be available and linked off the interim fix download page. Workarounds and Mitigations None Get Notified about Future Security Bulletins References - --------------------------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 iQIVAwUBXjjrrGaOgq3Tt24GAQierw//QL4pk7aLdtLlCj5W5R30LpUgQRMPP2bO aXFO1G6z3OoSNC/aoxYgilyZOxehocCs01TYRC8qhurMCK+WwJy5BS2iX8Ym8X8/ R8OLtxQsRoOBvtXnA/g/m6mIyTiW5RZYsTq3P2TKnZ9toAatDHppBX2V+G7oOaKY XSolILVf+T9O+opEF1HKr4jbUF11o3q21lzSXoc7PlTJnKtCORY8KblWENCttY0M tV/a98L2vDVILa+Z4jia2C0YFHxtGl/ep/zBxtcI9lQgvoFo3wA1WoifG5Xal5Ai A1/CHf5QgiVEL+f+jwaQu6BVYP9qsoiuX6u275A3CLid3yAa1/ZOvbk24cUHkxRN 8IHOFh7GF/ifWNdpq0AGrTwLDOvosMOPAnpcGum7rRAJff4xoBGg7uaBCZOeXu3Z sRSUImakkyb/4HpnL8fXBz+lm5yLUOK84bPVVjxnvYIcQqi7f75y0Q2K2zw7qp47 uj7vaI7sUEfNstkFXCd9EWaLD5Uxg1JuHI0MGeU/77IxqIh7WwVaPvPdyqA682QE bE1NYYxZViazdpnSSCqCHtF9qAuSdidN0/UIOgg5el06Kj+YwOnl+mg+5Gf2phyk yTAomGBd2eoiYEo2Wm7cEcOG9eGroJMvPbNMvZ/wvpkk5yhfk9Z8YgO64Rf9GLvM cmY9ylEdd0k= =LBzN -----END PGP SIGNATURE-----