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Bug 1132365 - Remove password from the PAM stack if OTP is used
Remove password from the PAM stack if OTP is used
Status: CLOSED ERRATA
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: sssd (Show other bugs)
7.0
Unspecified Unspecified
unspecified Severity unspecified
: rc
: ---
Assigned To: Jakub Hrozek
Kaushik Banerjee
:
Depends On:
Blocks:
  Show dependency tree / graph
 
Reported: 2014-08-21 04:46 EDT by Jakub Hrozek
Modified: 2015-03-05 05:33 EST (History)
8 users (show)

See Also:
Fixed In Version: sssd-1.12.2-10.el7
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Environment:
Last Closed: 2015-03-05 05:33:21 EST
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2015:0441 normal SHIPPED_LIVE sssd bug fix and enhancement update 2015-03-05 10:05:27 EST

  None (edit)
Description Jakub Hrozek 2014-08-21 04:46:26 EDT 
This bug is created as a clone of upstream ticket:
https://fedorahosted.org/sssd/ticket/2404

If the krb5_child returns that an OTP was used during authenication (see `parse_krb5_child_response` for more details) we should remove the authtok from the PAM stack to make user the password is not consumed further down the stack, in software like gnome-keyring.
Comment 1 Jakub Hrozek 2014-11-07 09:15:06 EST 
master: 2368a0fc19bcd56581eccd8397289e4513a383a5
Comment 3 Dan Lavu 2015-01-30 09:16:48 EST 
VERIFIED on sssd-1.12.2-45.el7.x86_64 , OTP was used with an iPhone 5s, after OTP auth occurred, no further authentication occurred.

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(Fri Jan 30 08:58:06 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626286.478559: Upgrading to FAST due to presence of PA_FX_FAST in reply
(Fri Jan 30 08:58:06 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626286.478576: FAST armor ccache: MEMORY:/var/lib/sss/db/fast_ccache_TESTRELM.TEST
(Fri Jan 30 08:58:06 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626286.478602: Retrieving host/qe-blade-09.testrelm.test@TESTRELM.TEST -> krb5_ccache_conf_data/fast_avail/krbtgt\/TESTRELM.TEST\@TESTRELM.TEST@X-CACHECONF: from MEMORY:/var/lib/sss/db/fast_ccache_TESTRELM.TEST with result: -1765328243/Matching credential not found
(Fri Jan 30 08:58:06 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626286.478629: Getting credentials host/qe-blade-09.testrelm.test@TESTRELM.TEST -> krbtgt/TESTRELM.TEST@TESTRELM.TEST using ccache MEMORY:/var/lib/sss/db/fast_ccache_TESTRELM.TEST
(Fri Jan 30 08:58:06 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626286.478692: Retrieving host/qe-blade-09.testrelm.test@TESTRELM.TEST -> krbtgt/TESTRELM.TEST@TESTRELM.TEST from MEMORY:/var/lib/sss/db/fast_ccache_TESTRELM.TEST with result: 0/Success
(Fri Jan 30 08:58:06 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626286.478744: Armor ccache sesion key: aes256-cts/16F7
(Fri Jan 30 08:58:06 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626286.478803: Creating authenticator for host/qe-blade-09.testrelm.test@TESTRELM.TEST -> krbtgt/TESTRELM.TEST@TESTRELM.TEST, seqnum 0, subkey aes256-cts/150B, session key aes256-cts/16F7
(Fri Jan 30 08:58:06 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626286.478909: FAST armor key: aes256-cts/9FB6
(Fri Jan 30 08:58:06 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626286.478956: Encoding request body and padata into FAST request
(Fri Jan 30 08:58:06 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626286.479033: Sending request (1017 bytes) to TESTRELM.TEST
(Fri Jan 30 08:58:06 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626286.479101: Initiating TCP connection to stream 10.16.96.112:88
(Fri Jan 30 08:58:06 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626286.479369: Sending TCP request to stream 10.16.96.112:88
(Fri Jan 30 08:58:06 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626286.482369: Received answer (558 bytes) from stream 10.16.96.112:88
(Fri Jan 30 08:58:06 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626286.482405: Terminating TCP connection to stream 10.16.96.112:88
(Fri Jan 30 08:58:06 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626286.482460: Response was from master KDC
(Fri Jan 30 08:58:06 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626286.482487: Received error from KDC: -1765328359/Additional pre-authentication required
(Fri Jan 30 08:58:06 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626286.482507: Decoding FAST response
(Fri Jan 30 08:58:06 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626286.482591: Processing preauth types: 136, 141, 133, 137
(Fri Jan 30 08:58:06 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626286.482609: Received cookie: MIT
(Fri Jan 30 08:58:06 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626286.482733: Preauth module otp (141) (real) returned: 0/Success
(Fri Jan 30 08:58:06 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626286.482753: Produced preauth for next request: 133, 142
(Fri Jan 30 08:58:06 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626286.482769: Encoding request body and padata into FAST request
(Fri Jan 30 08:58:06 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626286.482834: Sending request (1159 bytes) to TESTRELM.TEST
(Fri Jan 30 08:58:06 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626286.482880: Initiating TCP connection to stream 10.16.96.112:88
(Fri Jan 30 08:58:06 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626286.483137: Sending TCP request to stream 10.16.96.112:88
(Fri Jan 30 08:58:07 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626287.619566: Received answer (911 bytes) from stream 10.16.96.112:88
(Fri Jan 30 08:58:07 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626287.619596: Terminating TCP connection to stream 10.16.96.112:88
(Fri Jan 30 08:58:07 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626287.619658: Response was from master KDC
(Fri Jan 30 08:58:07 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626287.619688: Decoding FAST response
(Fri Jan 30 08:58:07 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626287.619753: Processing preauth types: (empty)
(Fri Jan 30 08:58:07 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626287.619772: Produced preauth for next request: (empty)
(Fri Jan 30 08:58:07 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626287.619792: Salt derived from principal: TESTRELM.TESTtwo
(Fri Jan 30 08:58:07 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626287.619822: AS key determined by preauth: aes256-cts/9FB6
(Fri Jan 30 08:58:07 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626287.619874: FAST reply key: aes256-cts/D065
(Fri Jan 30 08:58:07 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626287.619921: Decrypted AS reply; session key is: aes256-cts/EB7B
(Fri Jan 30 08:58:07 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626287.619960: FAST negotiation: available
(Fri Jan 30 08:58:07 2015) [[sssd[krb5_child[22246]]]] [sss_krb5_expire_callback_func] (0x2000): exp_time: [7773009]
(Fri Jan 30 08:58:07 2015) [[sssd[krb5_child[22246]]]] [validate_tgt] (0x2000): Found keytab entry with the realm of the credential.
(Fri Jan 30 08:58:07 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626287.620059: Retrieving host/qe-blade-09.testrelm.test@TESTRELM.TEST from MEMORY:/etc/krb5.keytab (vno 0, enctype 0) with result: 0/Success
(Fri Jan 30 08:58:07 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626287.620078: Resolving unique ccache of type MEMORY
(Fri Jan 30 08:58:07 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626287.620101: Initializing MEMORY:58Wxq0a with default princ two@TESTRELM.TEST
(Fri Jan 30 08:58:07 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626287.620128: Removing two@TESTRELM.TEST -> krbtgt/TESTRELM.TEST@TESTRELM.TEST from MEMORY:58Wxq0a
(Fri Jan 30 08:58:07 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626287.620148: Storing two@TESTRELM.TEST -> krbtgt/TESTRELM.TEST@TESTRELM.TEST in MEMORY:58Wxq0a
(Fri Jan 30 08:58:07 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626287.620171: Getting credentials two@TESTRELM.TEST -> host/qe-blade-09.testrelm.test@TESTRELM.TEST using ccache MEMORY:58Wxq0a
(Fri Jan 30 08:58:07 2015) [[sssd[krb5_child[22246]]]] [sss_child_krb5_trace_cb] (0x4000): [22246] 1422626287.620204: Retrieving two@TESTRELM.TEST -> host/qe-blade-09.testrelm.test@TESTRELM.TEST from MEMORY:58Wxq0a with result: -1765328243/Matching credential not found
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Comment 5 errata-xmlrpc 2015-03-05 05:33:21 EST 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2015-0441.html
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