CVE-2020-15074 (GCVE-0-2020-15074)
Vulnerability from cvelistv5 – Published: 2020-07-14 17:27 – Updated: 2024-08-04 13:08
VLAI?
Summary
OpenVPN Access Server older than version 2.8.4 and version 2.9.5 generates new user authentication tokens instead of reusing exiting tokens on reconnect making it possible to circumvent the initial token expiry timestamp.
Severity ?
No CVSS data available.
CWE
- CWE-302 - Authentication Bypass by Assumed-Immutable Data
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| n/a | OpenVPN Access Server |
Affected:
2.8.3 and prior versions in addition to 2.9.5
|
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-04T13:08:21.889Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://openvpn.net/vpn-server-resources/release-notes/"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "OpenVPN Access Server",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "2.8.3 and prior versions in addition to 2.9.5"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "OpenVPN Access Server older than version 2.8.4 and version 2.9.5 generates new user authentication tokens instead of reusing exiting tokens on reconnect making it possible to circumvent the initial token expiry timestamp."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-302",
"description": "CWE-302: Authentication Bypass by Assumed-Immutable Data",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2021-11-22T18:04:24",
"orgId": "36a55730-e66d-4d39-8ca6-3c3b3017965e",
"shortName": "OpenVPN"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://openvpn.net/vpn-server-resources/release-notes/"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "security@openvpn.net",
"ID": "CVE-2020-15074",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "OpenVPN Access Server",
"version": {
"version_data": [
{
"version_value": "2.8.3 and prior versions in addition to 2.9.5"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "OpenVPN Access Server older than version 2.8.4 and version 2.9.5 generates new user authentication tokens instead of reusing exiting tokens on reconnect making it possible to circumvent the initial token expiry timestamp."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-302: Authentication Bypass by Assumed-Immutable Data"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://openvpn.net/vpn-server-resources/release-notes/",
"refsource": "MISC",
"url": "https://openvpn.net/vpn-server-resources/release-notes/"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "36a55730-e66d-4d39-8ca6-3c3b3017965e",
"assignerShortName": "OpenVPN",
"cveId": "CVE-2020-15074",
"datePublished": "2020-07-14T17:27:31",
"dateReserved": "2020-06-25T00:00:00",
"dateUpdated": "2024-08-04T13:08:21.889Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"fkie_nvd": {
"configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:openvpn:openvpn_access_server:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"2.8.4\", \"matchCriteriaId\": \"9A2A3EA8-FDC3-4C27-B59A-9EFC11395F60\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:openvpn:openvpn_access_server:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"2.9.0\", \"versionEndExcluding\": \"2.9.6\", \"matchCriteriaId\": \"C8833B00-0170-42C7-99BB-D1E53CC32380\"}]}]}]",
"descriptions": "[{\"lang\": \"en\", \"value\": \"OpenVPN Access Server older than version 2.8.4 and version 2.9.5 generates new user authentication tokens instead of reusing exiting tokens on reconnect making it possible to circumvent the initial token expiry timestamp.\"}, {\"lang\": \"es\", \"value\": \"El servidor de acceso OpenVPN anterior a la versi\\u00f3n 2.8.4 y la versi\\u00f3n 2.9.5 genera nuevos tokens de autenticaci\\u00f3n de usuario en lugar de reutilizar los tokens existentes en la reconexi\\u00f3n, lo que permite eludir la marca de tiempo de caducidad del token inicial\"}]",
"id": "CVE-2020-15074",
"lastModified": "2024-11-21T05:04:45.400",
"metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N\", \"baseScore\": 7.5, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 3.6}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:L/Au:N/C:N/I:P/A:N\", \"baseScore\": 5.0, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"PARTIAL\", \"availabilityImpact\": \"NONE\"}, \"baseSeverity\": \"MEDIUM\", \"exploitabilityScore\": 10.0, \"impactScore\": 2.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
"published": "2020-07-14T18:15:14.680",
"references": "[{\"url\": \"https://openvpn.net/vpn-server-resources/release-notes/\", \"source\": \"security@openvpn.net\", \"tags\": [\"Release Notes\", \"Vendor Advisory\"]}, {\"url\": \"https://openvpn.net/vpn-server-resources/release-notes/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Release Notes\", \"Vendor Advisory\"]}]",
"sourceIdentifier": "security@openvpn.net",
"vulnStatus": "Modified",
"weaknesses": "[{\"source\": \"security@openvpn.net\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-302\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-613\"}]}]"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2020-15074\",\"sourceIdentifier\":\"security@openvpn.net\",\"published\":\"2020-07-14T18:15:14.680\",\"lastModified\":\"2024-11-21T05:04:45.400\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"OpenVPN Access Server older than version 2.8.4 and version 2.9.5 generates new user authentication tokens instead of reusing exiting tokens on reconnect making it possible to circumvent the initial token expiry timestamp.\"},{\"lang\":\"es\",\"value\":\"El servidor de acceso OpenVPN anterior a la versi\u00f3n 2.8.4 y la versi\u00f3n 2.9.5 genera nuevos tokens de autenticaci\u00f3n de usuario en lugar de reutilizar los tokens existentes en la reconexi\u00f3n, lo que permite eludir la marca de tiempo de caducidad del token inicial\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:N/I:P/A:N\",\"baseScore\":5.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":10.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"security@openvpn.net\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-302\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-613\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:openvpn:openvpn_access_server:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"2.8.4\",\"matchCriteriaId\":\"9A2A3EA8-FDC3-4C27-B59A-9EFC11395F60\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:openvpn:openvpn_access_server:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"2.9.0\",\"versionEndExcluding\":\"2.9.6\",\"matchCriteriaId\":\"C8833B00-0170-42C7-99BB-D1E53CC32380\"}]}]}],\"references\":[{\"url\":\"https://openvpn.net/vpn-server-resources/release-notes/\",\"source\":\"security@openvpn.net\",\"tags\":[\"Release Notes\",\"Vendor Advisory\"]},{\"url\":\"https://openvpn.net/vpn-server-resources/release-notes/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Release Notes\",\"Vendor Advisory\"]}]}}"
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…