CVE-2024-5742

Nano: running `chmod` and `chown` on the filename allows malicious user to replace the emergency file with a malicious symlink to a root-owned file

Description

A vulnerability was found in GNU Nano that allows a possible privilege escalation through an insecure temporary file. If Nano is killed while editing, a file it saves to an emergency file with the permissions of the running user provides a window of opportunity for attackers to escalate privileges through a malicious symlink.

Category

6.7
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.04%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com
Affected: Red Hat Red Hat Enterprise Linux 8
Affected: Red Hat Red Hat Enterprise Linux 9
Affected: Red Hat Red Hat Enterprise Linux 6
Affected: Red Hat Red Hat Enterprise Linux 7
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/errata/RHSA-2024:6986 vendor advisory
https://access.redhat.com/errata/RHSA-2024:9430 vendor advisory
https://access.redhat.com/security/cve/CVE-2024-5742 vdb entry vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2278574 vendor advisory issue tracking
https://lists.debian.org/debian-lts-announce/2024/06/msg00006.html

Frequently Asked Questions

What is the severity of CVE-2024-5742?
CVE-2024-5742 has been scored as a medium severity vulnerability.
How to fix CVE-2024-5742?
To fix CVE-2024-5742, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-5742 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-5742 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-5742?
CVE-2024-5742 affects Red Hat Red Hat Enterprise Linux 8, Red Hat Red Hat Enterprise Linux 9, Red Hat Red Hat Enterprise Linux 6, Red Hat Red Hat Enterprise Linux 7.
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