oss-sec mailing list archives

CVE request for proxychains-ng : current path as the first directory for the library search path


From: Mamoru TASAKA<mtasaka () fedoraproject org>
Date: Tue, 12 May 2015 15:51:57 +0900

Dear All:

Here I submit a CVE request for proxychains-ng as it is requested as
below.

Sincerely yours,
Mamoru TASAKA <mtasaka () fedoraproject org>


------- Forwarded Message
Date :Mon, 11 May 2015 23:49:57 -0600
From :kseifried () redhat com
Subject :Re: bug 1147013 : current path as the first directory for the library search path

----
On 05/11/2015 11:27 PM, Mamoru TASAKA wrote:
Dear security responsible team:

Please correct me if it is not suitable to contact you for the below case.
I am currently reviewing new package's "Review Request" for
proxychains-ng as

https://bugzilla.redhat.com/show_bug.cgi?id=1147013

Source available as
https://github.com/rofl0r/proxychains-ng

Rebuilt proxychains-ng binary.rpm contains proxychains4,
which firstly sets LD_PRELOAD to dlopen libproxychains4.so
(contained in the same binary rpm) and execvp() the arbitrary
command user has specified.

Looking at the code, this program (proxychains4) sets the current
directory as the first path to search libproxychains4.so. ref:

https://github.com/rofl0r/proxychains-ng/blob/master/src/main.c#L35

I would appreciate it if you would answer to me if this
is permitted from the viewpoint of security.

Sincerely yours,
Mamoru TASAKA 

This is def a security flaw, similar to CVE-2009-0415 for example. Can
you please post a copy of this to oss-security () lists openwall com
requesting a CVE # for this vulnerability? Also please use
secalert () redhat com in future, it has a response SLA, this email address
does not. Thanks!


-- 
Kurt Seifried -- Red Hat -- Product Security -- Cloud
PGP A90B F995 7350 148F 66BF 7554 160D 4553 5E26 7993

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