#VU102739 Race condition in Rsync - CVE-2024-12747

Vulnerability identifier: #VU102739

Vulnerability risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-12747

CWE-ID: CWE-362

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Rsync
Server applications / Other server solutions

Vendor: Samba

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to a race condition when handling symbolic links. A local user can replace a file with a symbolic link, bypass implemented protection in rsync that prevents software from following symbolic links and read contents of arbitrary files on the system with elevated privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Rsync: 1.6.4 - 3.3.0pre1

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External links
https://seclists.org/oss-sec/2025/q1/16

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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