Bug 90007 – app-forensics/rkhunter Insecure temp file creation

• Product: Gentoo Security
• Status: RESOLVED FIXED

[Description Sune Kloppenborg Jeppesen (RETIRED) 2005-04-21 22:50:00 UTC]

The supplied check_update.sh script creates temporary files insecurely: 

/tmp/rkhunter.upd.gz
/tmp/rkhunter.upd

At least the first one is easy to exploit.

It is executed when rkhunter --update is called.

Auditors please verify my findings.

[Comment 1 Tavis Ormandy (RETIRED) 2005-04-22 02:28:38 UTC]

Confirmed, there are more in rkhunter:

/tmp/procmail.txt
/tmp/proftpd.txt
/tmp/openssh.txt

these are UUoC as well, i suppose author didnt know 2>&1 :)

[Comment 2 Sune Kloppenborg Jeppesen (RETIRED) 2005-04-22 05:58:43 UTC]

Upstream notified.

[Comment 3 Sune Kloppenborg Jeppesen (RETIRED) 2005-04-22 10:21:12 UTC]

Upstream responded that he will look into it.

upstream CC'ed.

[Comment 4 Tavis Ormandy (RETIRED) 2005-04-25 09:54:52 UTC]

Created attachment 57197 [details, diff]
suggested fix

[Comment 5 Aaron Walker (RETIRED) 2005-04-25 10:22:40 UTC]

Looks good here.  1.2.3-r1 is in CVS pending new upstream release.  CC'd archs please mark stable.

[Comment 6 Thierry Carrez (RETIRED) 2005-04-25 11:52:02 UTC]

Opening the bug since the fix is incvs now

[Comment 7 Gustavo Zacarias (RETIRED) 2005-04-25 11:59:11 UTC]

sparc stable.

[Comment 8 Jan Brinkmann (RETIRED) 2005-04-25 12:05:22 UTC]

stable on amd64

[Comment 9 Michael Hanselmann (hansmi) (RETIRED) 2005-04-25 12:39:31 UTC]

Stable on ppc.

[Comment 10 Aaron Walker (RETIRED) 2005-04-26 04:46:32 UTC]

New upstream release is out, but still vulnerable (none of the suggested fixes were applied).  A patched 1.2.4 is in CVS.

[Comment 11 Aaron Walker (RETIRED) 2005-04-26 04:48:50 UTC]

Looks like alpha stabled but never commented on the bug.  This one's ready to go.

[Comment 12 Sune Kloppenborg Jeppesen (RETIRED) 2005-04-26 12:31:28 UTC]

GLSA 200504-25