Synology DiskStation Manager up to 6.2 SYNO.Core.ACL file_path information disclosure

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 (≈)
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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.
4.2$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Synology DiskStation Manager up to 6.2. Affected by this issue is some unknown functionality of the component SYNO.Core.ACL. The manipulation of the argument file_path as part of Parameter leads to information disclosure. This vulnerability is uniquely identified as CVE-2018-13281. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Synology DiskStation Manager up to 6.2 (Network Attached Storage Software) and classified as problematic. This issue affects an unknown code of the component SYNO.Core.ACL. The manipulation of the argument file_path as part of a Parameter leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. The summary by CVE is:

Information exposure vulnerability in SYNO.Core.ACL in Synology DiskStation Manager (DSM) before 6.2-23739-2 allows remote authenticated users to determine the existence and obtain the metadata of arbitrary files via the file_path parameter.

The bug was discovered 07/03/2018. The weakness was disclosed 10/30/2018 (Website). It is possible to read the advisory at synology.com. The identification of this vulnerability is CVE-2018-13281 since 07/05/2018. The attack may be initiated remotely. A simple authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 120 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 6.2-23739-2 eliminates this vulnerability.

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

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.3
NVD Vector: 🔍

CNA Base Score: 4.3
CNA Vector (Synology Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: DiskStation Manager 6.2-23739-2

Timelineinfo

07/03/2018 🔍
07/05/2018 +1 days 🔍
10/30/2018 +118 days 🔍
10/31/2018 +0 days 🔍
11/01/2018 +1 days 🔍
01/15/2025 +2267 days 🔍

Sourcesinfo

Vendor: synology.com

Advisory: SA_18_36
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-13281 (🔍)
GCVE (CVE): GCVE-0-2018-13281
GCVE (VulDB): GCVE-100-126347

Entryinfo

Created: 11/01/2018 05:45
Updated: 01/15/2025 04:25
Changes: 11/01/2018 05:45 (61), 04/09/2020 09:56 (2), 06/04/2023 07:29 (4), 06/04/2023 07:35 (10), 01/15/2025 04:25 (17)
Complete: 🔍
Cache ID: 216:D32:103

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

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