GNU nano Filename symlink

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability was found in GNU nano and classified as critical. Affected by this vulnerability is an unknown functionality of the component Filename Handler. The manipulation results in symlink. This vulnerability is reported as CVE-2024-5742. The attack requires a local approach. No exploit exists. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability was found in GNU nano (the affected version is unknown). It has been classified as critical. Affected is an unknown code of the component Filename Handler. The manipulation with an unknown input leads to a symlink vulnerability. CWE is classifying the issue as CWE-61. The product, when opening a file or directory, does not sufficiently account for when the file is a symbolic link that resolves to a target outside of the intended control sphere. This could allow an attacker to cause the product to operate on unauthorized files. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at bugzilla.redhat.com. This vulnerability is traded as CVE-2024-5742 since 06/07/2024. The exploitability is told to be easy. The attack needs to be approached locally. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 207751 (AlmaLinux 8 : nano (ALSA-2024:6986)), which helps to determine the existence of the flaw in a target environment.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.savannah.gnu.org.

The vulnerability is also documented in the databases at Tenable (207751) and EUVD (EUVD-2024-47130). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.7
NVD Vector: 🔍

CNA Base Score: 6.7
CNA Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Symlink
CWE: CWE-61 / CWE-59
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 207751
Nessus Name: AlmaLinux 8 : nano (ALSA-2024:6986)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: git.savannah.gnu.org

Timelineinfo

06/07/2024 🔍
06/07/2024 +0 days 🔍
06/07/2024 +0 days 🔍
07/05/2025 +393 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: bugzilla.redhat.com
Status: Confirmed

CVE: CVE-2024-5742 (🔍)
GCVE (CVE): GCVE-0-2024-5742
GCVE (VulDB): GCVE-100-267432
EUVD: 🔍

Entryinfo

Created: 06/07/2024 19:19
Updated: 07/05/2025 12:07
Changes: 06/07/2024 19:19 (52), 06/14/2024 15:18 (13), 09/24/2024 19:31 (12), 09/29/2024 23:24 (2), 10/07/2024 23:29 (6), 07/05/2025 12:07 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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