[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
IRIX :19970503-01-PX - runpriv Security Issue
We've turned off the "priviledges" facility on DDCS supported hosts, in
response to the security advisory below.
We also added something to autoinstall, so that this should be ok on
subsequently autoinstalled IRIX 6.3 and 6.4 hosts.
[This notice is a part of OAC's efforts to keep the campus informed of
potential computer security liabilities. Please send any questions or
concerns to us at DCS@UCI.EDU]
In article <5ld1ur$3dk$1@murrow.corp.sgi.com> you write:
<
<RELEASE RESTRICTIONS - NONE - FOR PUBLIC RELEASE
<
<
<-----BEGIN PGP SIGNED MESSAGE-----
<
<______________________________________________________________________________
< Silicon Graphics Inc. Security Advisory
<
< Title: Program runpriv Security Issue
< Number: 19970503-01-PX
< Date: May 14, 1997
<______________________________________________________________________________
<
<Silicon Graphics provides this information freely to the SGI user community
<for its consideration, interpretation, implementation and use. Silicon
<Graphics recommends that this information be acted upon as soon as possible.
<
<Silicon Graphics provides the information in this Security Advisory on
<an "AS-IS" basis only, and disclaims all warranties with respect thereto,
<express, implied or otherwise, including, without limitation, any warranty
<of merchantability or fitness for a particular purpose. In no event shall
<SGI be liable for any loss of profits, loss of business, loss of data or
<for any indirect, special, exemplary, incidental or consequential damages
<of any kind arising from your use of, failure to use or improper use of
<any of the instructions or information in this Security Advisory.
<______________________________________________________________________________
<
<
<- ------------------
<- --- Background ---
<- ------------------
<
<The /usr/sysadm/bin/runpriv program is used by the System Desktop
<to allow unprivileged users to run selected privileged commands.
<Silicon Graphics has been informed of a potential security
<vulnerability involving this program.
<
<Silicon Graphics Inc. has investigated the issue and recommends the
<following steps for neutralizing the exposure. It is HIGHLY RECOMMENDED
<that these measures be implemented on ALL SGI systems running IRIX versions
<6.3 and 6.4. This issue will be corrected in future releases of IRIX.
<
<
<
<- --------------
<- --- Impact ---
<- --------------
<
<The /usr/sysadm/bin/runpriv program is part of the Indigo Magic System
<Administration subsystem of IRIX 6.3 and 6.4. Although other IRIX
<versions will have similar Desktop System Administration subsystems,
<only the IRIX 6.3 and 6.4 subsystems have the runpriv program. On
<IRIX 6.3 and 6.4, the Indigo Magic System Administration subsystem
<is installed by default.
<
<A potential security vulnerability has been found that can result in
<root privileges being obtained.
<
<A local account is required in order to exploit this vulnerability both
<locally and remotely.
<
<Publicity of this vulnerability has been limited and has afforded
<Silicon Graphics Inc. the opportunity to fully investigate this issue
<and provide the following information and solutions.
<
<
<
<- ---------------------
<- --- Temporary Fix ---
<- ---------------------
<
<Although patches are available for this issue, it is realized that
<there may be situations where installing the patches immediately many
<not be possible.
<
<The steps below can be used to remove the vulnerability by turning
<off the privileges capability.
<
<
< ***************
< *** WARNING ***
< ***************
<
<
< Turning off the privileges capability will disable unprivileged
< users using the visual administration tools. Only the root user
< will be able to run these programs.
<
<
< 1) Become the root user on the system.
<
< % /bin/su -
< Password:
< #
<
<
< 2) Turn off the privileges capability.
<
< # chkconfig privileges off
<
<
< 3) Return to previous level.
<
< # exit
< $
<
<
<
<- ----------------
<- --- Solution ---
<- ----------------
<
<
<**** IRIX 3.x and 4.x ****
<
<Silicon Graphics Inc, no longer supports the IRIX 3.x and 4.x operating
<systems and therefore has no patches to provide.
<
<
<
<**** IRIX 5.x, 6.0, 6.0.1, 6.1, and 6.2 ****
<
<These versions of IRIX do not have the /usr/sysadm/bin/runpriv program
<and are therefore not vulnerable. No further action is required for
<these versions.
<
<
<
<**** IRIX 6.3 ****
<
<For the IRIX operating system version 6.3 an inst-able patch has been
<generated and made available via anonymous FTP and your service/support
<provider. The patch is number 2077 and will install on IRIX 6.3 only.
<
<The SGI anonymous FTP site is sgigate.sgi.com (204.94.209.1) or its
<mirror, ftp.sgi.com. Patch 2077 can be found in the following
<directories on the FTP server:
<
< ~ftp/Security
<
< or
<
< ~ftp/Patches/6.3
<
< ##### Checksums ####
<
<The actual patch will be a tar file containing the following files:
<
<Filename: README.patch.2077
<Algorithm #1 (sum -r): 34622 8 README.patch.2077
<Algorithm #2 (sum): 22197 8 README.patch.2077
<MD5 checksum: B3DFE9BAE87AFF4153A1CF3BFAD7B522
<
<Filename: patchSG0002077
<Algorithm #1 (sum -r): 53668 1 patchSG0002077
<Algorithm #2 (sum): 32550 1 patchSG0002077
<MD5 checksum: EC35AE80FB77125305EA8BE98CC15C98
<
<Filename: patchSG0002077.idb
<Algorithm #1 (sum -r): 01148 1 patchSG0002077.idb
<Algorithm #2 (sum): 40537 1 patchSG0002077.idb
<MD5 checksum: A23D679D06167F20DE125486592BABC9
<
<Filename: patchSG0002077.sysadmdesktop_sw
<Algorithm #1 (sum -r): 10875 15 patchSG0002077.sysadmdesktop_sw
<Algorithm #2 (sum): 46398 15 patchSG0002077.sysadmdesktop_sw
<MD5 checksum: 8B03D59C0E3A9748B90FED6C5994A739
<
<
<
<**** IRIX 6.4 ****
<
<For the IRIX operating system version 6.4 an inst-able patch has been
<generated and made available via anonymous FTP and your service/support
<provider. The patch is number 2078 and will install on IRIX 6.4 only.
<
<The SGI anonymous FTP site is sgigate.sgi.com (204.94.209.1) or its
<mirror, ftp.sgi.com. Patch 2078 can be found in the following
<directories on the FTP server:
<
< ~ftp/Security
<
< or
<
< ~ftp/Patches/6.4
<
< ##### Checksums ####
<
<The actual patch will be a tar file containing the following files:
<
<Filename: README.patch.2078
<Algorithm #1 (sum -r): 24207 8 README.patch.2078
<Algorithm #2 (sum): 24278 8 README.patch.2078
<MD5 checksum: 32AD0F5DB530D6E31315C31C76B45DD3
<
<Filename: patchSG0002078
<Algorithm #1 (sum -r): 57740 1 patchSG0002078
<Algorithm #2 (sum): 33268 1 patchSG0002078
<MD5 checksum: C9AEEF6551A7280B3A7695B63B40B37C
<
<Filename: patchSG0002078.idb
<Algorithm #1 (sum -r): 49797 1 patchSG0002078.idb
<Algorithm #2 (sum): 40655 1 patchSG0002078.idb
<MD5 checksum: 18FE323A8FB7DAC71DD623B5DDA2B6E7
<
<Filename: patchSG0002078.sysadmdesktop_sw
<Algorithm #1 (sum -r): 06501 15 patchSG0002078.sysadmdesktop_sw
<Algorithm #2 (sum): 28499 15 patchSG0002078.sysadmdesktop_sw
<MD5 checksum: 3020CBAE24B094CECB6C6C5FD73D0E97
<
<
<
<- -----------------------
<- --- Acknowledgments ---
<- -----------------------
<
<Silicon Graphics wishes to thank Joe Bester and Quay Ly of Harvey Mudd
<College for bringing this issue to Silicon Graphics attention, and then
<cooperating with Silicon Graphics during the generation of patches.
<
<
<
<- -----------------------------------------
<- --- SGI Security Information/Contacts ---
<- -----------------------------------------
<
<If there are questions about this document, email can be sent to
<cse-security-alert@sgi.com.
<
< ------oOo------
<
<Silicon Graphics provides security information and patches for
<use by the entire SGI community. This information is freely
<available to any person needing the information and is available
<via anonymous FTP and the Web.
<
<The primary SGI anonymous FTP site for security information and patches
<is sgigate.sgi.com (204.94.209.1). Security information and patches
<are located under the directories ~ftp/security and ~ftp/patches,
<respectively. The Silicon Graphics Security Headquarters Web page is
<accessible at the URL http://www.sgi.com/Support/Secur/security.html.
<
<For issues with the patches on the FTP sites, email can be sent to
<cse-security-alert@sgi.com.
<
<For assistance obtaining or working with security patches, please
<contact your SGI support provider.
<
< ------oOo------
<
<Silicon Graphics provides a free security mailing list service
<called wiretap and encourages interested parties to self-subscribe
<to receive (via email) all SGI Security Advisories when they are
<released. Subscribing to the mailing list can be done via the Web
<(http://www.sgi.com/Support/Secur/wiretap.html) or by sending email
<to SGI as outlined below.
<
<% mail wiretap-request@sgi.com
<subscribe wiretap <YourEmailAddress>
<end
<^d
<
<In the example above, <YourEmailAddress> is the email address that you
<wish the mailing list information sent to. The word end must be on a
<separate line to indicate the end of the body of the message. The
<control-d (^d) is used to indicate to the mail program that you are
<finished composing the mail message.
<
<
< ------oOo------
<
<Silicon Graphics provides a comprehensive customer World Wide Web site.
<This site is located at http://www.sgi.com/Support/Secur/security.html.
<
< ------oOo------
<
<For reporting *NEW* SGI security issues, email can be sent to
<security-alert@sgi.com or contact your SGI support provider. A
<support contract is not required for submitting a security report.
<
<______________________________________________________________________________
< This information is provided freely to all interested parties and may
< be redistributed provided that it is not altered in any way, Silicon
< Graphics is appropriately credited and the document retains and
< includes its valid PGP signature.
<
<
<-----BEGIN PGP SIGNATURE-----
<Version: 2.6.2
<
<iQCVAwUBM3oDV7Q4cFApAP75AQH4LwP/ePpNwri+ijMaLrYq1xE2SZb7agDaZfr6
</dIMvJJU6/41TUrpJpymM/kTXuytEJiThPAZHWEFaY+fxdSKi3aFjAh8k/RoDvmg
<9nuy+xZrdzq1AELKfKRr2gU/62vMUKacs+tCwfmQLc2iFeWhdAIQ7H83Iw4TRMso
<EOgD1UOshbg=
<=JDZS
<-----END PGP SIGNATURE-----
<