CVE-2020-36565 - Vulnerability Details - OpenCVE

Due to improper sanitization of user input on Windows, the static file handler allows for directory traversal, allowing an attacker to read files outside of the target directory that the server has permission to read.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00751.

Exploitation poc

Automatable yes

Technical Impact partial

Vendors	Products
Labstack	Echo
Microsoft	Windows

Configuration 1 [-]

AND

cpe:2.3:a:labstack:echo:*:*:*:*:*:go:*:*

cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*

No data.

No data.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://github.com/labstack/echo/commit/4422e3b66b9fd498ed1ae1d0242d660d0ed3faaa
https://github.com/labstack/echo/pull/1718
https://pkg.go.dev/vuln/GO-2021-0051

History

Wed, 23 Apr 2025 16:15:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: Go

Published: 2022-12-07T16:14:43.946Z

Updated: 2025-04-23T15:38:30.467Z

Reserved: 2022-07-29T18:52:35.508Z

Link: CVE-2020-36565

Vulnrichment

Updated: 2024-08-04T17:30:08.318Z

NVD

Status : Modified

Published: 2022-12-07T17:15:09.910

Modified: 2025-04-23T16:15:20.650

Link: CVE-2020-36565

Redhat

No data.

OpenCVE Enrichment

No data.

{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2020-36565", "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc", "state": "PUBLISHED", "assignerShortName": "Go", "requesterUserId": "7d08541a-cd0a-42e2-8f81-76e6ceb65fc3", "dateReserved": "2022-07-29T18:52:35.508Z", "datePublished": "2022-12-07T16:14:43.946Z", "dateUpdated": "2025-04-23T15:38:30.467Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc", "shortName": "Go", "dateUpdated": "2023-06-12T19:04:06.359Z"}, "title": "Directory traversal on Windows in github.com/labstack/echo/v4", "descriptions": [{"lang": "en", "value": "Due to improper sanitization of user input on Windows, the static file handler allows for directory traversal, allowing an attacker to read files outside of the target directory that the server has permission to read."}], "affected": [{"vendor": "github.com/labstack/echo/v4", "product": "github.com/labstack/echo/v4", "collectionURL": "https://pkg.go.dev", "packageName": "github.com/labstack/echo/v4", "versions": [{"version": "0", "lessThan": "4.1.18-0.20201215153152-4422e3b66b9f", "status": "affected", "versionType": "semver"}], "platforms": ["windows"], "programRoutines": [{"name": "common.static"}, {"name": "Echo.Static"}, {"name": "Group.Static"}], "defaultStatus": "unaffected"}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE 22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')"}]}], "references": [{"url": "https://github.com/labstack/echo/pull/1718"}, {"url": "https://github.com/labstack/echo/commit/4422e3b66b9fd498ed1ae1d0242d660d0ed3faaa"}, {"url": "https://pkg.go.dev/vuln/GO-2021-0051"}], "credits": [{"lang": "en", "value": "@little-cui (Apache ServiceComb)"}]}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T17:30:08.318Z"}, "title": "CVE Program Container", "references": [{"url": "https://github.com/labstack/echo/pull/1718", "tags": ["x_transferred"]}, {"url": "https://github.com/labstack/echo/commit/4422e3b66b9fd498ed1ae1d0242d660d0ed3faaa", "tags": ["x_transferred"]}, {"url": "https://pkg.go.dev/vuln/GO-2021-0051", "tags": ["x_transferred"]}]}, {"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2025-04-23T15:38:06.629425Z", "id": "CVE-2020-36565", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-04-23T15:38:30.467Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://github.com/labstack/echo/pull/1718", "tags": ["x_transferred"]}, {"url": "https://github.com/labstack/echo/commit/4422e3b66b9fd498ed1ae1d0242d660d0ed3faaa", "tags": ["x_transferred"]}, {"url": "https://pkg.go.dev/vuln/GO-2021-0051", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T17:30:08.318Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2020-36565", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2025-04-23T15:38:06.629425Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-04-23T15:38:26.067Z"}}], "cna": {"title": "Directory traversal on Windows in github.com/labstack/echo/v4", "credits": [{"lang": "en", "value": "@little-cui (Apache ServiceComb)"}], "affected": [{"vendor": "github.com/labstack/echo/v4", "product": "github.com/labstack/echo/v4", "versions": [{"status": "affected", "version": "0", "lessThan": "4.1.18-0.20201215153152-4422e3b66b9f", "versionType": "semver"}], "platforms": ["windows"], "packageName": "github.com/labstack/echo/v4", "collectionURL": "https://pkg.go.dev", "defaultStatus": "unaffected", "programRoutines": [{"name": "common.static"}, {"name": "Echo.Static"}, {"name": "Group.Static"}]}], "references": [{"url": "https://github.com/labstack/echo/pull/1718"}, {"url": "https://github.com/labstack/echo/commit/4422e3b66b9fd498ed1ae1d0242d660d0ed3faaa"}, {"url": "https://pkg.go.dev/vuln/GO-2021-0051"}], "descriptions": [{"lang": "en", "value": "Due to improper sanitization of user input on Windows, the static file handler allows for directory traversal, allowing an attacker to read files outside of the target directory that the server has permission to read."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE 22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')"}]}], "providerMetadata": {"orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc", "shortName": "Go", "dateUpdated": "2023-06-12T19:04:06.359Z"}}}, "cveMetadata": {"cveId": "CVE-2020-36565", "state": "PUBLISHED", "dateUpdated": "2025-04-23T15:38:30.467Z", "dateReserved": "2022-07-29T18:52:35.508Z", "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc", "datePublished": "2022-12-07T16:14:43.946Z", "requesterUserId": "7d08541a-cd0a-42e2-8f81-76e6ceb65fc3", "assignerShortName": "Go"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:labstack:echo:*:*:*:*:*:go:*:*", "matchCriteriaId": "FA1ABB43-0434-4FBD-B5C4-0417346F426C", "versionEndExcluding": "4.2.0", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*", "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Due to improper sanitization of user input on Windows, the static file handler allows for directory traversal, allowing an attacker to read files outside of the target directory that the server has permission to read."}, {"lang": "es", "value": "Debido a una sanitizaci\u00f3n incorrecta de la entrada del usuario en Windows, el controlador de archivos est\u00e1ticos permite directory traversal, lo que permite a un atacante leer archivos fuera del directorio de destino para los que el servidor tiene permiso de lectura."}], "id": "CVE-2020-36565", "lastModified": "2025-04-23T16:15:20.650", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2022-12-07T17:15:09.910", "references": [{"source": "security@golang.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/labstack/echo/commit/4422e3b66b9fd498ed1ae1d0242d660d0ed3faaa"}, {"source": "security@golang.org", "tags": ["Exploit", "Patch", "Third Party Advisory"], "url": "https://github.com/labstack/echo/pull/1718"}, {"source": "security@golang.org", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://pkg.go.dev/vuln/GO-2021-0051"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/labstack/echo/commit/4422e3b66b9fd498ed1ae1d0242d660d0ed3faaa"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Patch", "Third Party Advisory"], "url": "https://github.com/labstack/echo/pull/1718"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes", "Vendor Advisory"], "url": "https://pkg.go.dev/vuln/GO-2021-0051"}], "sourceIdentifier": "security@golang.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}], "source": "nvd@nist.gov", "type": "Primary"}]}