Information disclosure in TwonkyMedia Server

1) Path traversal

EUVDB-ID: #VU13040

Risk: Low

CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2018-7171

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.

The weakness exists due to path traversal. A remote attacker can conduct directory traversal attack and gain access to important data and share the contents of arbitrary directories via a .. (dot dot) in the contentbase parameter to rpc/set_all.

Mitigation

Install update from vendor's website.

Vulnerable software versions

TwonkyMedia Server: 7.0.11 - 8.5.0

External links

http://packetstormsecurity.com/files/146938/TwonkyMedia-Server-7.0.11-8.5-Directory-Traversal.html

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.