I'm running a program that's sgid, and it has a command-line interpreter from which I can execute unix commands. I wrote a perl script to modify data in a private file that I own so I can run it from inside this program. It works fine outside of the sgid program, but inside, the perl generates the error,

Insecure dependency in open while running with -T switch at filename line 152.

(Line 152 is the line that opens the data file for writing, and I am not running with the -T switch.) Anticipating the taintedness of the open call (from the perl reference), I have the following in the program:

use English;
$EGID = $GID; $EUID = $UID;

[download]

But, it still gives me the error. What am I missing?

Dan Heller
http://www.danheller.com

In reply to Insecure dependency in open by argv

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