Synology SSO Server prior 2.2.3-0331 WebAPI path traversal

CVSS Meta Temp Score
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CTI Interest Score
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4.7$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Synology SSO Server. Impacted is an unknown function of the component WebAPI. This manipulation causes path traversal. This vulnerability is tracked as CVE-2022-27620. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Synology SSO Server. Affected by this vulnerability is an unknown functionality of the component WebAPI. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality. The summary by CVE is:

Improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability in webapi component in Synology SSO Server before 2.2.3-0331 allows remote authenticated users to read arbitrary files via unspecified vectors.

The weakness was disclosed 08/03/2022 as SA_22_13. It is possible to read the advisory at synology.com. This vulnerability is known as CVE-2022-27620 since 03/21/2022. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

Upgrading to version 2.2.3-0331 eliminates this vulnerability.

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

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.7
VulDB Meta Temp Score: 4.7

VulDB Base Score: 2.7
VulDB Temp Score: 2.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 6.8
CNA Vector (Synology Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: SSO Server 2.2.3-0331

Timelineinfo

03/21/2022 🔍
08/03/2022 +134 days 🔍
08/03/2022 +0 days 🔍
08/03/2022 +0 days 🔍

Sourcesinfo

Vendor: synology.com

Advisory: SA_22_13
Status: Confirmed

CVE: CVE-2022-27620 (🔍)
GCVE (CVE): GCVE-0-2022-27620
GCVE (VulDB): GCVE-100-205507

Entryinfo

Created: 08/03/2022 09:54
Changes: 08/03/2022 09:54 (50)
Complete: 🔍
Cache ID: 216::103

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