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CVE-2006-5872 (filed against SQL-Ledger) also affects LedgerSMB. This
was first fixed in LedgerSMB 1.1.5 but due to a number of unrelated
bugs, we recommend upgrading to 1.1.7. SQL-Ledger fixed the problem in
2.6.21.
This occurs due to the improper handling of input handling in the
redirect function which also allows the user to specify a file with
arguments to be run via Perl. However, since one can specify -e as the
script (making the command line perl -e ....) one can specify whatever
code to execute one would like.
The following link demonstrates the vulnerability.
http://127.0.0.1/sql-ledger/login.pl?login=demo&script=-e%3fprint%20S
TDERR%20%27hello%20world%27%3b&action=logout
<http://127.0.0.1/sql-ledger/login.pl?login=demo&script=-e%3fprint%
20STDERR%20%27hello%20world%27%3b&action=logout>
Best Wishes,
Chris Travers
Metatron Technology Consulting
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