Security readout for executives and security teams
Plain-English summary
CVE-2018-13285 is a command injection flaw in Synology Router Manager’s FTP daemon. A remote authenticated user could run operating system commands on affected routers before SRM 1.1.7-6941-1. This matters most where FTP is enabled and reachable by non-administrative or weakly controlled accounts.
Executive priority
Treat as high priority for any reachable SRM FTP service, especially on internet-facing or partner-accessible networks. Patch or disable exposure promptly, then verify account hygiene and logs.
Technical view
The CVE describes CWE-78 command injection in ftpd in Synology SRM before 1.1.7-6941-1, reachable over the network with low privileges and no user interaction. The CVSS 3.0 score is 7.5, with high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is likely limited to Synology routers running SRM earlier than 1.1.7-6941-1 with FTP enabled for authenticated users. The provided data does not list exact router models, CPEs, or default service exposure, so asset confirmation is required.
Exploitation context
The source bundle does not show CISA KEV listing or cited active exploitation. The flaw requires authentication and has high attack complexity, but successful abuse could execute arbitrary OS commands on the router.
Researcher notes
Evidence supports authenticated command injection through FTP MKD or RMD handling, but the bundle does not include model coverage, proof-of-concept details, exploit telemetry, or complete vendor remediation text beyond the advisory reference.
Mitigation direction
- Upgrade Synology SRM to 1.1.7-6941-1 or later.
- Review Synology advisory Synology_SA_18_34 for vendor-specific guidance.
- Disable FTP if it is not operationally required.
- Restrict FTP access to trusted networks and users.
- Remove unnecessary or stale FTP-capable accounts.
Validation and detection
- Inventory Synology SRM routers and record firmware versions.
- Identify any SRM version earlier than 1.1.7-6941-1.
- Confirm whether FTP or ftpd is enabled on each device.
- Review authenticated FTP accounts for unnecessary access.
- Check relevant device logs for suspicious authenticated FTP activity.
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-78: Command execution behavior lookup
Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. 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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2018-13285 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
- High
- CVSS
- 7.5 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
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:H/PR:L/UI:N/S:U/C:H/I:H/A:H1.65.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
7.5HighVector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.synology.com/security/advisory/Synology_SA_18_34CVE 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.