Path traversal in SolarWinds Serv-U

1) Path traversal

EUVDB-ID: #VU91290

Risk: Critical

CVSSv3.1: 9.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N/E:H/RL:O/RC:C]

CVE-ID: CVE-2024-28995

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 input validation error when processing directory traversal sequences. A remote attacker can send a specially crafted request and read arbitrary files on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Serv-U FTP Server: 15.1 - 15.4.2

CPE2.3

• cpe:2.3:a:solarwinds:serv-u_ftp_server:15.1:*:*:*:*:*:*:
• cpe:2.3:a:solarwinds:serv-u_ftp_server:15.1.1:*:*:*:*:*:*:
• cpe:2.3:a:solarwinds:serv-u_ftp_server:15.1.2:*:*:*:*:*:*:

External links

http://www.solarwinds.com/trust-center/security-advisories/CVE-2024-28995
http://www.labs.greynoise.io/grimoire/2024-06-solarwinds-serv-u/

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?

Yes. This vulnerability is being exploited in the wild.