#VU31245 Link following in rpm - CVE-2017-7500
Published: August 13, 2018 / Updated: July 17, 2020
Vulnerability identifier: #VU31245
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2017-7500
CWE-ID: CWE-59
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
rpm
rpm
Software vendor:
rpm-software-management
rpm-software-management
Description
The vulnerability allows a local authenticated user to execute arbitrary code.
It was found that rpm did not properly handle RPM installations when a destination path was a symbolic link to a directory, possibly changing ownership and permissions of an arbitrary directory, and RPM files being placed in an arbitrary destination. An attacker, with write access to a directory in which a subdirectory will be installed, could redirect that directory to an arbitrary location and gain root privilege.
Remediation
Install update from vendor's website.