Path traversal in SnapCreek Duplicator

1) Path traversal

EUVDB-ID: #VU30308

Risk: Medium

CVSSv3.1: 7.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:H/RL:U/RC:C]

CVE-ID: CVE-2020-11738

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 perform directory traversal attacks.

The vulnerability exists due to insufficient sanitization of user-supplied passed via . A remote attacker can send a specially crafted HTTP request containing directory traversal sequences and read contents of arbitrary files on the system.

Mitigation

Update to version 1.3.28.

Vulnerable software versions

SnapCreek Duplicator: 1.3.0 - 1.3.26

External links

http://snapcreek.com/duplicator/docs/changelog/?lite
http://www.wordfence.com/blog/2020/02/active-attack-on-recently-patched-duplicator-plugin-vulnerability-affects-over-1-million-sites/

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?

Yes. This vulnerability is being exploited in the wild.