VDB-228746 · CVE-2023-31477 · EUVD-2023-35782

GL.iNet Device 1.00.220412.00 File Sharing /tmp path traversal

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.8	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical was found in GL.iNet Device. Affected by this issue is some unknown functionality of the file /tmp of the component File Sharing. Such manipulation leads to path traversal. This vulnerability is documented as CVE-2023-31477. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, has been found in GL.iNet Device. Affected by this issue is an unknown function of the file /tmp of the component File Sharing. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality, integrity, and availability. CVE summarizes:

A path traversal issue was discovered on GL.iNet devices before 3.216. Through the file sharing feature, it is possible to share an arbitrary directory, such as /tmp or /etc, because there is no server-side restriction to limit sharing to the USB path.

The weakness was released 05/11/2023. The advisory is available at github.com. This vulnerability is handled as CVE-2023-31477 since 04/28/2023. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

Upgrading to version 3.216 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-35782). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

GL.iNet

Name

Device

Version

1.00.220412.00

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.8

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Device 3.216

Timelineinfo

04/28/2023 🔍
05/11/2023 +13 days 🔍
05/11/2023 +0 days 🔍
12/26/2025 +960 days 🔍

Sourcesinfo

Advisory: github.com
Status: Confirmed

CVE: CVE-2023-31477 (🔍)
GCVE (CVE): GCVE-0-2023-31477
GCVE (VulDB): GCVE-100-228746
EUVD: 🔍

Entryinfo

Created: 05/11/2023 07:05
Updated: 12/26/2025 03:11
Changes: 05/11/2023 07:05 (40), 06/07/2023 11:00 (11), 01/27/2025 19:56 (27), 12/26/2025 03:11 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.