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Security Bulletin: Apache CXF vulnerability identified in IBM Tivoli Application Dependency Discovery Manager (CVE-2021-22696)

Description

## Summary This security bulletin addresses the vulnerability in Open Source Apache CXF that affect IBM Tivoli Application Dependency Discovery Manager. ## Vulnerability Details **CVEID: **[CVE-2021-22696](<http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-22696>) **DESCRIPTION: **Apache CXF is vulnerable to a denial of service, caused by improper validation of request_uri parameter by the OAuth 2 authorization service. By sending a specially-crafted request, a remote attacker could exploit this vulnerability to cause a denial of service condition on the authorization server. CVSS Base score: 7.5 CVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/199335](<https://exchange.xforce.ibmcloud.com/vulnerabilities/199335>) for the current score. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) ## Affected Products and Versions Affected Product(s) | Version(s) ---|--- IBM Tivoli Application Dependency Discovery Manager | 7.3.0.0-7.3.0.8 ## Remediation/Fixes **TADDM 7.3.0.5 and 7.3.0.8 : **The eFix in the table below can be downloaded and applied directly. **TADDM 7.3.0.6 and 7.3.0.7 : **If there are existing eFixes on these versions (ls -lrt etc/efix*), please contact IBM support and open a case for a custom version of the eFixes. Include the current eFix level (ls -lrt etc.efix*), TADDM version and a link to this bulletin. The eFix in the table below is created to be installed on the respective FixPacks only if there are no previously applied eFixes. **Fix ** | **VRMF** | **APAR** | **How to acquire fix** ---|---|---|--- efix_CXF_CVE-2021-22696_FP5180802.zip | 7.3.0.5 | None | [Download eFix](<https://www.secure.ecurep.ibm.com/download/?id=70dmfV4V56wTuDC0tZ4hWhi8LXQyUe16TcI7Vy1X3gU> "Download eFix" ) efix_CXF_CVE-2021-22696_FP6190313.zip | 7.3.0.6 | None | [Download eFix](<https://www.secure.ecurep.ibm.com/download/?id=AQGhDcpM11yNuXfS5OS9loZ2QmaTVD1vnXFQ71cB2NA> "Download eFix" ) efix_CXF_CVE-2021-22696_FP7200218.zip | 7.3.0.7 | None | [Download eFix](<https://www.secure.ecurep.ibm.com/download/?id=DrqicEfordT1SIbCm6GpcmnKZR0JMlsTw5L6z7nPy74> "Download eFix" ) efix_CXF_CVE-2021-22696_FP8201126.zip | 7.3.0.8 | None | [Download eFix](<https://www.secure.ecurep.ibm.com/download/?id=nOEdjo0CZVnSiO0XZmJhu8bF8iqe055l06cp3PdoBtk> "Download eFix" ) **Note:** Before TADDM 7.3.0.5, Java 7 was used and this CXF fix is applicable to Java8. Hence, no eFix can be provided for versions before 7.3.0.5 ## Workarounds and Mitigations For customers on TADDM 7.3.0.3 or 7.3.0.4, recommendation is to upgrade to the latest version and then apply the efix directly. ## Get Notified about Future Security Bulletins Subscribe to [My Notifications](< http://www-01.ibm.com/software/support/einfo.html>) to be notified of important product support alerts like this. ### References [Complete CVSS v3 Guide](<http://www.first.org/cvss/user-guide> "Link resides outside of ibm.com" ) [On-line Calculator v3](<http://www.first.org/cvss/calculator/3.0> "Link resides outside of ibm.com" ) Off ## Related Information [IBM Secure Engineering Web Portal](<http://www.ibm.com/security/secure-engineering/bulletins.html>) [IBM Product Security Incident Response Blog](<http://www.ibm.com/blogs/psirt>) ## Change History 04 May 2021: Initial Publication *The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin. ## Disclaimer Review the [IBM security bulletin disclaimer and definitions](<https://www.ibm.com/support/pages/node/6610583#disclaimer>) regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment. ## Document Location Worldwide [{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSPLFC","label":"Tivoli Application Dependency Discovery Manager"},"Component":"","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF033","label":"Windows"},{"code":"PF016","label":"Linux"}],"Version":"7.3.0.0 - 7.3.0.8","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]


Affected Software


CPE Name Name Version
tivoli application dependency discovery manager 7.3.0.0
tivoli application dependency discovery manager 7.3.0.8

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