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CVE-2023-40303

7.8 · HIGH

GNU inetutils before 2.5 may allow privilege escalation because of unchecked return values of set*id() family functions in ftpd, rcp, rlogin, rsh, rshd, and uucpd.

Published Aug 14, 2023CWE-252EPSS 0.41%

Overview

CVE-2023-40303 is a high-severity vulnerability. It was published on August 14, 2023 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

GNU inetutils before 2.5 may allow privilege escalation because of unchecked return values of set*id() family functions in ftpd, rcp, rlogin, rsh, rshd, and uucpd. This is, for example, relevant if the setuid system call fails when a process is trying to drop privileges before letting an ordinary user control the activities of the process.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.openwall.com/lists/oss-security/2023/12/30/4Refftp.gnu.org/gnu/inetutils/Refgit.savannah.gnu.org/cgit/inetutils.git/commit/?id=e4e65c03f4c11292a3e40ef72ca3f194c8bffdd6Reflists.debian.org/debian-lts-announce/2023/10/msg00013.htmlReflists.debian.org/debian-lts-announce/2023/10/msg00013.htmlReflists.debian.org/debian-lts-announce/2023/10/msg00013.htmlReflists.debian.org/debian-lts-announce/2023/10/msg00013.htmlReflists.gnu.org/archive/html/bug-inetutils/2023-07/msg00000.htmlRefwww.openwall.com/lists/oss-security/2023/12/30/4Refftp.gnu.org/gnu/inetutils/

How CyberStrike helps

Frequently asked questions

What is CVE-2023-40303?

CVE-2023-40303 is a high-severity vulnerability. It was published on August 14, 2023 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2023-40303?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-40303?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-40303?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-40303 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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