VDB-123275 · CVE-2018-15695 · Nessus 112115

ASUSTOR Data Master up to 3.1.5 wallpaper.cgi 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.
5.7	$0-$5k	0.00

Summaryinfo

A vulnerability was found in ASUSTOR Data Master up to 3.1.5. It has been classified as problematic. This impacts an unknown function of the file wallpaper.cgi. The manipulation leads to path traversal. This vulnerability is referenced as CVE-2018-15695. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in ASUSTOR Data Master up to 3.1.5. This issue affects an unknown code block of the file wallpaper.cgi. 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 integrity, and availability. The summary by CVE is:

ASUSTOR Data Master 3.1.5 and below allows authenticated remote non-administrative users to delete any file on the file system due to a path traversal vulnerability in wallpaper.cgi.

The bug was discovered 06/24/2018. The weakness was published 08/27/2018 (Website). It is possible to read the advisory at tenable.com. The identification of this vulnerability is CVE-2018-15695 since 08/22/2018. The attack may be initiated remotely. The requirement for exploitation is a simple authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 52 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 112115 (ASUSTOR Data Master < 3.1.6 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 13272 (ASUSTOR Data Master AS-202T Multiple Vulnerabilitites (tra-2018-22)).

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (112115). Similar entries are available at VDB-123274, VDB-123276, VDB-123277 and VDB-123278. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

ASUSTOR

Name

Data Master

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 5.4
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

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

Nessus ID: 112115
Nessus Name: ASUSTOR Data Master < 3.1.6 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/24/2018 🔍
08/15/2018 +52 days 🔍
08/22/2018 +6 days 🔍
08/24/2018 +2 days 🔍
08/27/2018 +2 days 🔍
08/27/2018 +0 days 🔍
08/28/2018 +1 days 🔍
03/18/2020 +568 days 🔍

Sourcesinfo

Advisory: tenable.com
Status: Not defined

CVE: CVE-2018-15695 (🔍)
GCVE (CVE): GCVE-0-2018-15695
GCVE (VulDB): GCVE-100-123275
See also: 🔍

Entryinfo

Created: 08/28/2018 06:28
Updated: 03/18/2020 14:26
Changes: 08/28/2018 06:28 (70), 03/18/2020 14:26 (3)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.