#VU107384 Path traversal in Active Backup for Business - CVE-2024-47265

Vulnerability identifier: #VU107384

Vulnerability risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-47265

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Active Backup for Business
Other software / Other software solutions

Vendor: Synology Inc.

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 in encrypted share umount functionality. A remote user can send a specially crafted HTTP request and write arbitrary files on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Active Backup for Business: before 2.7.1-3234

---

External links
https://www.synology.com/en-global/security/advisory/Synology_SA_25_02

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.