ECOA BAS controller - Path Traversal-3
ECOA BAS controller suffers from a path traversal vulnerability, causing arbitrary files disclosure. Using the specific POST parameter, unauthenticated attackers can remotely disclose arbitrary files on the affected device and disclose sensitive and system information.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for help- Published
- Sep 30, 2021
- Updated
- Jun 17, 2026
- EPSS
- 19.9% · 97th percentile
- CWE
- CWE-22
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Report tools
Action score
36
Monitor
Low priority for now.
- CVSS
- 30 / 40 · 7.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 6 / 30 · 19.9%
CNA vs NVD score
- NVD
- —
- CNA · twcert
- 7.5
- NVD has not scored this yet; the score shown is the CNA’s.
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| ecoa | ecs router controller-ecs firmware | cpe:2.3:o:ecoa:ecs_router_controller-ecs_firmware |
| ecoa | ecs router controller-ecs | cpe:2.3:h:ecoa:ecs_router_controller-ecs |
| ecoa | riskbuster firmware | cpe:2.3:o:ecoa:riskbuster_firmware |
| ecoa | riskbuster | cpe:2.3:h:ecoa:riskbuster |
| ecoa | riskterminator | cpe:2.3:a:ecoa:riskterminator |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- ecoa ecs router controller-ecs firmwareall versions
- ecoa riskbuster firmwareall versions
- ecoa riskterminatorall versions
Versions reported by the vendor
Affected version ranges reported by the assigning authority (twcert). Independent of NVD's CPE analysis and usually ahead of it.
ECOA ECS Router Controller ECS (FLASH)
- next of 0 and later · before unspecifiedunknown
ECOA Graphic Control Software
- next of 0 and later · before unspecifiedunknown
ECOA RiskBuster System RB 3.0.0
- next of 0 and later · before unspecifiedunknown
ECOA RiskBuster System TRANE 1.0
- next of 0 and later · before unspecifiedunknown
ECOA RiskBuster Terminator E6L45
- next of 0 and later · before unspecifiedunknown
ECOA RiskTerminator
- next of 0 and later · before unspecifiedunknown
ECOA SmartHome II E9246
- next of 0 and later · before unspecifiedunknown
Same product
ecoa: all recordsOther highest-scoring records for the same primary product.
- CVE-2021-41291ECOA BAS controller - Path Traversal-155Plan
- CVE-2021-41301ECOA BAS controller - Exposure of Sensitive Information to an Unauthorized Actor40Plan
- CVE-2021-41299ECOA BAS controller - Use of Hard-coded Credentials40Plan
- CVE-2021-41290ECOA BAS controller - Path Traversal-140Plan
- CVE-2021-41300ECOA BAS controller - Insufficiently Protected Credentials-239Monitor
- CVE-2021-41296ECOA BAS controller - Weak Password Requirements39Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
Proof of concept available
A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.
Evidence
- Nuclei detection template ×1
Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.
| Source | Kind | Date |
|---|---|---|
| Nuclei detection template | Nuclei template CVE-2021-41293 | — |
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- none
- Availability
- none
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- None
- Availability impact
- None
Weakness class (CWE)
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
nvd-secondary
Root cause
A user-supplied file name is joined with the allowed directory, but the result is never checked to confirm it is still inside that directory.
The bug in code
The whole CWE-22 classA representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.
Vulnerable
const file = path.join(ROOT, req.query.name);res.sendFile(file);Fixed
const file = path.resolve(ROOT, req.query.name);if (!file.startsWith(ROOT + path.sep)) { return res.sendStatus(400);}res.sendFile(file);Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- Path TraversalCAPEC-126likelihood: High · Very High
- Using Slashes and URL Encoding Combined to Bypass Validation LogicCAPEC-64likelihood: High · High
- Manipulating Web Input to File System CallsCAPEC-76likelihood: High · Very High
- Using Escaped Slashes in Alternate EncodingCAPEC-78likelihood: High · High
- Using Slashes in Alternate EncodingCAPEC-79likelihood: High · High
ATT&CK techniques
—
Change log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.