Gallery Remote Global Variable Injection Vulnerability

BID:9490

Info

Gallery Remote Global Variable Injection Vulnerability

Bugtraq ID: 9490
Class: Input Validation Error
CVE:
Remote: Yes
Local: No
Published: Jan 26 2004 12:00AM
Updated: Jan 26 2004 12:00AM
Credit: The disclosure of this issue has been credited to Bharat Mediratta <[email protected]>.
Vulnerable: Bharat Mediratta Gallery 1.4.1
Bharat Mediratta Gallery 1.4
Bharat Mediratta Gallery 1.3.3
Bharat Mediratta Gallery 1.3.2
Bharat Mediratta Gallery 1.3.1
Not Vulnerable: Bharat Mediratta Gallery 1.4.2
Bharat Mediratta Gallery 1.4.1 pl1

Discussion

Gallery Remote Global Variable Injection Vulnerability

It has been reported that Gallery is prone to a vulnerability that may allow a remote attacker to gain unauthorized access by overwriting various values for global variables. The issue occurs due to improper simulation of the behaviour of register_globals when the register_globals settings is disabled. It has been reported that register_globals functionality is simulated by extracting the values of the various $HTTP_ global variables into the global namespace. Due to improper sanitization of user-supplied data, an attacker may be able to overwrite the value of 'HTTP_POST_VARS' via the register_global simulation. Arbitrary PHP files may be included via the 'GALLERY_BASEDIR' parameter.

The vendor has reported that this issue exists in Gallery versions 1.3.1, 1.3.2, 1.3.3, 1.4 and 1.4.1.

Exploit / POC

Gallery Remote Global Variable Injection Vulnerability

No exploit is required.

The following proof of concept has been supplied:
http://www.example.com/gallery/init.php?HTTP_POST_VARS=xxx

Solution / Fix

Gallery Remote Global Variable Injection Vulnerability

Solution:
The vendor has released Gallery 1.4.1-pl1 to address this issue. Users are advised to upgrade to the fixed version.

Gentoo has released advisory GLSA 200402-04 dealing with this issue. Please see the reference section for details.

The vendor has released Gallery 1.4.2 to address this and other issues. It is advised that if possible, users should upgrade to this version.


Bharat Mediratta Gallery 1.3.1

Bharat Mediratta Gallery 1.3.2

Bharat Mediratta Gallery 1.3.3

Bharat Mediratta Gallery 1.4

Bharat Mediratta Gallery 1.4.1

References

Gallery Remote Global Variable Injection Vulnerability

References:
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