Vulnerability identifier: #VU14187

Vulnerability risk: Medium

CVSSv3.1: 4.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-10916

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
lftp
Client/Desktop applications / File managers, FTP clients

Vendor: lftp

Description

The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The vulnerability exists due to improper sanitization of remote file names. A remote unauthenticated attacker can trick the victim into using reverse mirroring on an attacker controlled FTP server bypass security restrictions and remove all files in the current working directory of the victim's system.

Mitigation
Update to version 4.8.4.

Vulnerable software versions

lftp: 4.0.0 - 4.8.3

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External links
http://github.com/lavv17/lftp/commit/a27e07d90a4608ceaf928b1babb27d4d803e1992

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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.