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RE: CVE request: python-pyrad insecurities
From: "Christey, Steven M." <coley () mitre org>
Date: Fri, 15 Feb 2013 19:51:07 +0000

These two issues were fixed in the same diff and reflect poor randomness - should we have only assigned one CVE?  (If 
the RADIUS feature was introduced in different versions than the authenticator-password feature, then maybe the SPLIT 
is acceptable.)


- Steve


-----Original Message-----
From: Kurt Seifried [mailto:kseifried () redhat com] 
Sent: Friday, February 15, 2013 2:37 PM
To: oss-security () lists openwall com
Cc: Vincent Danen
Subject: Re: [oss-security] CVE request: python-pyrad insecurities

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On 02/15/2013 09:14 AM, Vincent Danen wrote:
Could a CVE be assigned to the following two issues please?

#1: https://bugzilla.redhat.com/show_bug.cgi?id=911682

Nathaniel McCallum of Red Hat reported that pyrad was using
Python's random module in a number of places to generate
pseudo-random data.  In the case of the authenticator data, it was
being used to secure a password sent over the wire.  Because
Python's random module is not really suited for this purpose (not
random enough), it could lead to password hashing that may be
predictable.

Please use CVE-2013-0294 for this issue.


#2: https://bugzilla.redhat.com/show_bug.cgi?id=911685

Nathaniel McCallum of Red Hat reported that pyrad was creating 
serialized RADIUS packet IDs in the CreateID() function in
packet.py. This is not suitable for RADIUS as the RFC specifies
that the ID must not be predictable.  As a result, the ID of the
next packet sent can be spoofed.

Please use CVE-2013-0295 for this issue.


These have been corrected in upstream's forthcoming version 2.1
via:

https://github.com/wichert/pyrad/commit/38f74b36814ca5b1a27d9898141126af4953bee5





- -- 
Kurt Seifried Red Hat Security Response Team (SRT)
PGP: 0x5E267993 A90B F995 7350 148F 66BF 7554 160D 4553 5E26 7993

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