Date: Fri, 15 Feb 2013 23:36:21 -0700 From: Kurt Seifried <kseifried@...hat.com> To: oss-security@...ts.openwall.com CC: Vincent Danen <vdanen@...hat.com>, "Christey, Steven M." <coley@...re.org> Subject: Re: CVE request: python-pyrad insecurities -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 02/15/2013 04:53 PM, Vincent Danen wrote: > * [2013-02-15 19:51:07 +0000] Christey, Steven M. wrote: > >> 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.) > > I'm not sure. I didn't go digging to see when they were introduced > -- both features may have been introduced at the same time (or > not). > > Ok, so doing a quick peek at the first full blob of it in git: > > https://github.com/wichert/pyrad/blob/c206b1dfc362db8b0ef9c256814377bde8ed91cf/pyrad/packet.py > > > > The use of random.randrange() is in both the CreateAuthenticator() > and CreateID() functions, so I would bet that they've been like > that the whole time (that blob is from Sept 2007). So I guess one > CVE is probably sufficient. > > I only noted them as two issues as we had two separate bug reports > about them. > >> -----Original Message----- From: Kurt Seifried >> [mailto:kseifried@...hat.com] Sent: Friday, February 15, 2013 >> 2:37 PM To: oss-security@...ts.openwall.com Cc: Vincent Danen >> Subject: Re: [oss-security] CVE request: python-pyrad >> insecurities >> > 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. Please REJECT CVE-2013-0295 and use CVE-2013-0294 for both issues (same code issue, same version, same reporter). - -- Kurt Seifried Red Hat Security Response Team (SRT) PGP: 0x5E267993 A90B F995 7350 148F 66BF 7554 160D 4553 5E26 7993 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.13 (GNU/Linux) iQIcBAEBAgAGBQJRHyjlAAoJEBYNRVNeJnmT02YP/0IgeqytaZjW0ltY10te6RSu osz/ZS6ZREPJha4WkV/Zy/TeEDQ3MbA5jvIZGHu95wn3j5LG9JkNh10ufqlOY/OF vajvm/2ICqUI3onjhSk0tY1eV/3vxcfkHzZFG3ARaM/cU21Rj40AbX/DA8mKNX80 x7LI0999hGZeuDb+sYhKYCulSt041HbRcFQDpBPwZJcX46FFZusSA9xevP+iuQxG oqDURPfxa4eM3BmUeSO4ONiTDLMVlkwHmnyUE+GOYEt7Jabh+VufH2z3HLaxUy6C NWW5YJNdejBzUKjZnrdRBIPGaXG2Uo4JJKh3I8SKchhxqHp+zvIYWtmGVTtVP11P jULoSoaevKpQqwqycFYopnGra/AY/wBBIPWLrhlbr2kcSOLuSCcMqpF5hrr1MAKT c8oWGbBDkRUFJArDlzPk7sNvxAWtViYLPTMA2hKDGGgOYMNJ8NeWjFVks8zuJkEo SuLZnUJ4Com4kNLsfvFXjlWrK6fwMCgn1s/2Iz4F2b/dt6f1ziSuTAxCU4/mxwQS XSBipPV+YxM/qbYhBa8g+LoMCT88ukPqmUOFzLavL8vvkpQlrusnLj9ditbl9GPh gjoaLbt8PVhPs24mZuTdgLaXuDHbK43QdSBBTLGUx5VaKeeNInmxWs/78y3oO837 Cf9LQDqUMcENF5L1s9jp =fObK -----END PGP SIGNATURE-----
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