#VU79879 Unchecked return value in Inetutils - GNU network utilities - CVE-2023-40303
Published: August 23, 2023
Vulnerability identifier: #VU79879
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-2023-40303
CWE-ID: CWE-252
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Inetutils - GNU network utilities
Inetutils - GNU network utilities
Software vendor:
GNU
GNU
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to usage of an unchecked return values of set*id() family functions in ftpd, rcp, rlogin, rsh, rshd, and uucpd while the setuid system call fails when a process is trying to drop privileges
before letting an ordinary user control the activities of the process. A local user can abuse this situation and execute arbitrary code with elevated privileges.
Remediation
Install updates from vendor's website.