LedgerSMB.txt

`Hi all;  
  
Summary:  
A directory transversal issue was found in LedgerSMB 1.0.0 involving the   
terminal variable. This vulnerability was inherited from the SQL-Ledger   
codebase. Due to the fact that SQL-Ledger has a built-in text editor,   
this issue could result in arbitrary code execution on the server. The   
SQL-Ledger and LedgerSMB teams have both released patches to these   
vulnerabilities.  
  
Software affected:  
SQL-Ledger, all versions prior to 2.6.19.  
LedgerSMB 1.0.0  
Other SQL-Ledger derivatives should presume themselves vulnerable (we   
have not checked).  
  
Patched versions:  
SQL-Ledger 2.6.19  
LedgerSMB 1.0.0p1  
SQL-Ledger 2.4.4-2.4.17 are particularly vulnerable due to CVE-2006-4244.  
  
Mitigating factors:  
Authentication is required (only for LedgerSMB 1.0.0 and SQL-Ledger   
2.4.3 and lower, or 2.6.18).  
  
Detailed description:  
The "terminal" query variable is insufficiently checked in the login.pl   
and admin.pl files for validity and can lead to directory transversal   
and arbitrary code execution in SQL-Ledger (2.6.18 and earlier) and   
LedgerSMB (1.0.0 only). In particular, an attacker could upload a file   
called "login.pl" using these facilities. The attacher could then pass   
a specially malformed url to the web server that would cause it to   
execute the code. The form of the url might be:  
http://hostname/path/login.pl?termina=../css  
  
In the course of our disclosure, we sent a notification to the developer   
of SQL-Ledger who quickly patched his software.  
  
All customers should upgrade to the newest versions of these packages at   
their earliest convenience.  
  
Credit for this disclosure should go to Chris Murtagh (a private   
individual) and Richard Patterson of Quickhelp.  
  
Best Wishes,  
Chris Travers  
Metatron Technology Consulting  
`