Vulnerability identifier: #VU3474
Vulnerability risk: High
CVSSv3.1: 8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N/E:F/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-22
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
nBill
Web applications /
Modules and components for CMS
Vendor: Netshine Software Limited
Description
The vulnerability allows a remote attacker to view contents of arbitrary files on the server.
The vulnerability exists due to insufficient filtration of user-supplied input in "/administrator/components/com_nbill/admin.nbill.php" and "/components/com_nbill/nbill.php" scripts. A remote attacker can send specially crafted HTTP request, containing directory traversal sequences (e.g. “../”) and view contents of arbitrary file on vulnerable server.
Successful exploitation of the vulnerability may allow an attacker to gain unauthorized access to potentially sensitive information.
Note: this vulnerability is being actively exploited against Joomla! installations.
Mitigation
Install patched version from vendor's website.
Vulnerable software versions
nBill: 1.2_10 for Joomla! - 2.0.10
External links
http://www.nbill.co.uk/forum/index.php/topic,2158.0.html
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. However, a fully functional exploit for this vulnerability is available.