Synology WebDAV Server prior 2.4.0-0062 path traversal

CVSS Meta Temp Score
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CTI Interest Score
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6.8$0-$5k0.00

Summaryinfo

A vulnerability was found in Synology WebDAV Server. It has been classified as critical. The impacted element is an unknown function. Performing a manipulation results in path traversal. This vulnerability is known as CVE-2022-22685. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic has been found in Synology WebDAV Server. This affects an unknown code block. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity, and availability. The summary by CVE is:

Improper limitation of a pathname to a restricted directory ('Path Traversal') vulnerability in webapi component in Synology WebDAV Server before 2.4.0-0062 allows remote authenticated users to delete arbitrary files via unspecified vectors.

The weakness was published 07/28/2022 as SA_21_09. The advisory is shared at synology.com. This vulnerability is uniquely identified as CVE-2022-22685 since 01/05/2022. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

Upgrading to version 2.4.0-0062 eliminates this vulnerability.

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Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.8

VulDB Base Score: 3.8
VulDB Temp Score: 3.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
NVD Vector: 🔍

CNA Base Score: 8.7
CNA Vector (Synology Inc.): 🔍

CVSSv2info

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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: WebDAV Server 2.4.0-0062

Timelineinfo

01/05/2022 🔍
07/28/2022 +203 days 🔍
07/28/2022 +0 days 🔍
08/28/2022 +31 days 🔍

Sourcesinfo

Vendor: synology.com

Advisory: SA_21_09
Status: Confirmed

CVE: CVE-2022-22685 (🔍)
GCVE (CVE): GCVE-0-2022-22685
GCVE (VulDB): GCVE-100-205245

Entryinfo

Created: 07/28/2022 13:54
Updated: 08/28/2022 09:55
Changes: 07/28/2022 13:54 (49), 08/28/2022 09:55 (11)
Complete: 🔍
Cache ID: 216::103

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