Security readout for executives and security teams
Plain-English summary
Synology Drive had an access-control flaw that could let a logged-in remote user view files or folders that were not shared with them. The main business risk is unintended disclosure of confidential data stored in Drive.
Executive priority
Treat as a moderate confidentiality issue. Prioritize remediation where Synology Drive stores sensitive customer, employee, legal, financial, or security data, especially if many users can authenticate.
Technical view
CVE-2018-8922 is a CWE-284 improper access control issue in Synology Drive before 1.0.2-10275. CVSS 3.0 is 6.5: network reachable, low complexity, low privileges required, no user interaction, high confidentiality impact, no integrity or availability impact.
Likely exposure
Exposure is likely limited to organizations still running Synology Drive versions before 1.0.2-10275. The source bundle does not identify exact CPEs, device models, operating environments, or vulnerable configurations beyond Synology Drive.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. The CVE states remote authenticated users could access non-shared files or folders via unspecified vectors, so validation should focus on version status and access boundaries.
Researcher notes
The public description does not specify the vulnerable code path or vector. Avoid assuming unauthenticated exposure, integrity impact, availability impact, or exploit availability without additional vendor or incident evidence.
Mitigation direction
- Upgrade Synology Drive to version 1.0.2-10275 or later.
- Review Synology advisory SA-18-11 for vendor-specific remediation guidance.
- Restrict Synology Drive access to trusted authenticated users until patched.
- Audit sensitive shared and non-shared Drive content permissions.
Validation and detection
- Inventory all Synology Drive deployments and record installed versions.
- Confirm no deployment runs a version earlier than 1.0.2-10275.
- Review access logs for unusual authenticated access to sensitive files.
- Verify file and folder sharing permissions match business intent.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-284: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2018-8922 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.5 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N2.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
6.5MediumVector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.synology.com/en-global/support/security/Synology_SA_18_11CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Access Control
Improper Access Control represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.