Vulnerability identifier: #VU42718

Vulnerability risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2013-0246

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Drupal
Web applications / CMS

Vendor: Drupal

Description

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

The Image module in Drupal 7.x before 7.19, when a private file system is used, does not properly restrict access to derivative images, which allows remote attackers to read derivative images of otherwise restricted images via unspecified vectors.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Drupal: 7.0 - 7.x-dev

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External links
http://packetstormsecurity.com/files/119598/Drupal-Core-6.x-7.x-Cross-Site-Scripting-Access-Bypass.html
http://seclists.org/fulldisclosure/2013/Jan/120
http://seclists.org/oss-sec/2013/q1/211
http://secunia.com/advisories/51717
http://drupal.org/SA-CORE-2013-001

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.