UNIX Hard Link in fstream - #VU18601
Published: May 24, 2019
Vulnerability identifier: #VU18601
CSH Severity: Medium
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-62
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to arbitrary file overwrite.
The vulnerability exists due to a file that matches the hardlink overwrites the system's file with the contents of the extracted file. A remote attacker can cause the software to operate on unauthorized files.
Affected software
fstream
Remediation
Install updates from vendor's website.
fstream - update to v1.0.12