Synology DNS Server up to 2.2.1 SYNO.DNSServer.Zone.MasterZoneConf domain_name path traversal

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.8$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Synology DNS Server up to 2.2.1. Affected by this vulnerability is an unknown functionality of the component SYNO.DNSServer.Zone.MasterZoneConf. Such manipulation of the argument domain_name leads to path traversal. This vulnerability is referenced as CVE-2017-12074. It is possible to launch the attack remotely. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Synology DNS Server up to 2.2.1 and classified as critical. Affected by this issue is an unknown part of the component SYNO.DNSServer.Zone.MasterZoneConf. The manipulation of the argument domain_name 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. CVE summarizes:

Directory traversal vulnerability in the SYNO.DNSServer.Zone.MasterZoneConf in Synology DNS Server before 2.2.1-3042 allows remote authenticated attackers to write arbitrary files via the domain_name parameter.

The bug was discovered 08/23/2017. The weakness was published 08/24/2017 (Website). The advisory is available at synology.com. This vulnerability is handled as CVE-2017-12074 since 07/31/2017. The attack may be launched remotely. A simple authentication is necessary for exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 2.2.1-3042 eliminates this vulnerability.

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Productinfo

Vendor

Name

Version

License

Website

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

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: DNS Server 2.2.1-3042

Timelineinfo

07/31/2017 🔍
08/23/2017 +23 days 🔍
08/24/2017 +1 days 🔍
08/24/2017 +0 days 🔍
08/25/2017 +1 days 🔍
12/16/2022 +1939 days 🔍

Sourcesinfo

Vendor: synology.com

Advisory: SA_17_46
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-12074 (🔍)
GCVE (CVE): GCVE-0-2017-12074
GCVE (VulDB): GCVE-100-105710

Entryinfo

Created: 08/25/2017 08:45
Updated: 12/16/2022 14:40
Changes: 08/25/2017 08:45 (53), 11/10/2019 08:35 (8), 12/16/2022 14:40 (4)
Complete: 🔍
Cache ID: 216:FA4:103

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