'phpPaleo' Local File Inclusion (CVE-2012-1671)

'phpPaleo' Local File Inclusion (CVE-2012-1671)
Mark Stanislav - [email protected]

I. DESCRIPTION

A vulnerability exists in index.php for language handling that allows
for local file inclusion using a null-byte attack on the 'lang' GET
parameter.

II. TESTED VERSION

4.8b156

III. PoC EXPLOIT

http://localhost/phppaleo/index.php?lang=../../../../../../../etc/passwd%00

IV. NOTES

• magic_quotes_gpc must be disabled and PHP must be < 5.3.4 for
  null-byte attacks to work

V. SOLUTION

Upgrade to 4.8b157 or above.

VI. REFERENCES

http://sourceforge.net/projects/phppaleo/
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-1671

VII. TIMELINE

03/01/2012 - Initial vendor disclosure
03/02/2012 - Vendor patched and released an updated version
04/04/2012 - Public disclosure