SECURITY (Doc Number=3431): AIX WPAR vulnerability CVE-2014-0899

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 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1  IBM SECURITY ADVISORY  First Issued: Thu Mar  6 11:54:14 CST 2014  The most recent version of this document is available here:  http://aix.software.ibm.com/aix/efixes/security/wparcre_advisory.asc https://aix.software.ibm.com/aix/efixes/security/wparcre_advisory.asc ftp://aix.software.ibm.com/aix/efixes/security/wparcre_advisory.asc ===============================================================================                            VULNERABILITY SUMMARY  VULNERABILITY:   Security Vulnerability in WPAR ftp for AIX  PLATFORMS:       7.1  SOLUTION:        Apply the fix as described below.  THREAT:          See below.  CVE Number:      CVE-2014-0899  Reboot required?    NO Workarounds?        YES Protected by FPM?   NO Protected by SED?   NO ===============================================================================                            DETAILED INFORMATION  I. DESCRIPTION       If ftpd is run in a 5.2 or 5.3 WPAR, a non-root user who      logs in via ftp is allowed to access all files within the WPAR.  II. CVSS      CVSS Base Score: 5.5     CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/91396 for the     current score     CVSS Environmental Score*: Undefined     CVSS Vector: (AV:N/AC:L/Au:S/C:N/I:P/A:P)  III. PLATFORM VULNERABILITY ASSESSMENT      The following fileset levels are vulnerable:      AIX Fileset        AIX Level       Lower Level       Upper Level    KEY     ----------------------------------------------------------------------------     vwpar.52.rte       7.1.1           1.1.0.0           1.1.1.19      key_w_fs     vwpar.52.rte       7.1.2           1.1.2.0           1.1.2.17      key_w_fs      AIX Fileset        AIX Level       Lower Level       Upper Level    KEY     ----------------------------------------------------------------------------     vwpar.53.rte       7.1.1           1.1.0.0           1.1.1.8       key_w_fs     vwpar.53.rte       7.1.2           1.1.2.0           1.1.2.15      key_w_fs      NOTE: To find out whether the affected filesets are installed on your     systems, refer to the lslpp  command found in AIX user's guide.  IV. SOLUTIONS      A. APARS          IBM has assigned the following APARs to this problem:          AIX Level     APAR number      Availability    SP        KEY         ---------------------------------------------------------------------         7.1.1         IV51420          08/29/2014      SP10      key_w_apar         7.1.2         IV51421          08/29/2014      SP5       key_w_apar          Subscribe to the APARs here:          http://www.ibm.com/support/docview.wss?uid=isg1IV51420         http://www.ibm.com/support/docview.wss?uid=isg1IV51421          By subscribing, you will receive periodic email alerting you         to the status of the APAR, and a link to download the fix once         it becomes available.      B. FIXES          Fixes are available.  The fixes can be downloaded via ftp         from:          ftp://aix.software.ibm.com/aix/efixes/security/wparcre_fix.tar          The link above is to a tar file containing this signed         advisory, fix packages, and PGP signatures for each package.         The fixes below include prerequisite checking. This will         enforce the correct mapping between the fixes and AIX         Technology Levels.          AIX Level                     Interim Fix (*.Z)             KEY         ---------------------------------------------------------------------         7.1.1.8    Wpar 5.2           IV51420s52.131030.epkg.Z      key_w_fix         7.1.1.8    Wpar 5.3           IV51420s53.131031.epkg.Z      key_w_fix         7.1.2.3    Wpar 5.2           IV51421s52.131030.epkg.Z      key_w_fix         7.1.2.3    Wpar 5.3           IV51421s53.131031.epkg.Z      key_w_fix          The epkg's named with an "s52" must be applied inside a 5.2 WPAR,         and those with the "s53" must be applied inside a 5.3 WPAR. The         WPAR(s) can be either rootvg WPAR or non-rootvg; either is fine.          To extract the fixes from the tar file:          tar xvf wparcre_fix.tar         cd wparcre_fix          Verify you have retrieved the fixes intact:          The checksums below were generated using the         "csum -h SHA1" (sha1sum) command is the followng:          csum -h SHA1 (sha1sum)                    filename         ------------------------------------------------------------------         a175a14ca5756b80649bd864d392eeddc1fc6451  IV51420s52.131030.epkg.Z         fc1dac514e75cbe72ba571143f82ddfd6d2ad551  IV51420s53.131031.epkg.Z         6550a8e30162348ab725b4750d979d3f9f5a9a85  IV51421s52.131030.epkg.Z         301b071f5d95acb5b365bb91822619cbe7465bbf  IV51421s53.131031.epkg.Z          To verify the sum, use the text of this advisory as input to sha1sum.         For example:          csum -h SHA1 -i wparcre_advisory.asc         sha1sum -c wparcre_advisory.asc          These sums should match exactly. The PGP signatures in the tar         file and on this advisory can also be used to verify the         integrity of the fixes.  If the sums or signatures cannot be         confirmed, contact IBM AIX Security at         security-alert@austin.ibm.com and describe the discrepancy.  V. WORKAROUNDS       Do not run ftpd in a 5.2 or 5.3 WPAR.  VI. CONTACT INFORMATION      If you would like to receive AIX Security Advisories via email,     please visit:          http://www.ibm.com/support/mynotifications      To view previously issued advisories, please visit:          http://www14.software.ibm.com/webapp/set2/subscriptions/onvdq      Comments regarding the content of this announcement can be     directed to:          security-alert@austin.ibm.com      To obtain the PGP public key that can be used to communicate     securely with the AIX Security Team you can either:          A. Send an email with "get key" in the subject line to:              security-alert@austin.ibm.com          B. Download the key from our web page:      http://www.ibm.com/systems/resources/systems_p_os_aix_security_pgpkey.txt          C. Download the key from a PGP Public Key Server. The key ID is:              0x28BFAA12      Please contact your local IBM AIX support center for any     assistance.      eServer is a trademark of International Business Machines     Corporation.  IBM, AIX and pSeries are registered trademarks of     International Business Machines Corporation.  All other trademarks     are property of their respective holders.  VII. ACKNOWLEDGMENTS      IBM discovered and fixed this vulnerability as part of its     commitment to secure the AIX operating system.  VIII. REFERENCES:      Note: Keywords labeled as KEY in this document are used for parsing purposes.      Complete CVSS Guide: http://www.first.org/cvss/cvss-guide.html     On-line Calculator V2: http://nvd.nist.gov/cvss.cfm?calculator&adv&version=2     X-Force Vulnerability Database: http://xforce.iss.net/xforce/xfdb/91396     CVE-2014-0899: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-0899      *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 Flash.      Note: According to the Forum of Incident Response and Security Teams     (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry     open standard designed to convey vulnerability severity and help to     determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES     "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF     MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE     RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY     VULNERABILITY.  -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.13 (AIX)  iEYEARECAAYFAlMYtmQACgkQ4fmd+Ci/qhJE4QCfZn9EtZBbJhnypy7WSYCkLTnd VIsAoJbcmmVepmhAu0PuBOKa9/BSFp9Y =JqfO -----END PGP SIGNATURE-----