gsd-2021-29441
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
Nacos is a platform designed for dynamic service discovery and configuration and service management. In Nacos before version 1.4.1, when configured to use authentication (-Dnacos.core.auth.enabled=true) Nacos uses the AuthFilter servlet filter to enforce authentication. This filter has a backdoor that enables Nacos servers to bypass this filter and therefore skip authentication checks. This mechanism relies on the user-agent HTTP header so it can be easily spoofed. This issue may allow any user to carry out any administrative tasks on the Nacos server.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-29441",
"description": "Nacos is a platform designed for dynamic service discovery and configuration and service management. In Nacos before version 1.4.1, when configured to use authentication (-Dnacos.core.auth.enabled=true) Nacos uses the AuthFilter servlet filter to enforce authentication. This filter has a backdoor that enables Nacos servers to bypass this filter and therefore skip authentication checks. This mechanism relies on the user-agent HTTP header so it can be easily spoofed. This issue may allow any user to carry out any administrative tasks on the Nacos server.",
"id": "GSD-2021-29441"
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2021-29441"
],
"details": "Nacos is a platform designed for dynamic service discovery and configuration and service management. In Nacos before version 1.4.1, when configured to use authentication (-Dnacos.core.auth.enabled=true) Nacos uses the AuthFilter servlet filter to enforce authentication. This filter has a backdoor that enables Nacos servers to bypass this filter and therefore skip authentication checks. This mechanism relies on the user-agent HTTP header so it can be easily spoofed. This issue may allow any user to carry out any administrative tasks on the Nacos server.",
"id": "GSD-2021-29441",
"modified": "2023-12-13T01:23:36.794687Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
"cve.org": {
"CVE_data_meta": {
"ASSIGNER": "security-advisories@github.com",
"ID": "CVE-2021-29441",
"STATE": "PUBLIC",
"TITLE": "Authentication bypass"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "nacos",
"version": {
"version_data": [
{
"version_value": "\u003c 1.4.1"
}
]
}
}
]
},
"vendor_name": "alibaba"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "Nacos is a platform designed for dynamic service discovery and configuration and service management. In Nacos before version 1.4.1, when configured to use authentication (-Dnacos.core.auth.enabled=true) Nacos uses the AuthFilter servlet filter to enforce authentication. This filter has a backdoor that enables Nacos servers to bypass this filter and therefore skip authentication checks. This mechanism relies on the user-agent HTTP header so it can be easily spoofed. This issue may allow any user to carry out any administrative tasks on the Nacos server."
}
]
},
"impact": {
"cvss": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 8.6,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-290 Authentication Bypass by Spoofing"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/alibaba/nacos/issues/4701",
"refsource": "MISC",
"url": "https://github.com/alibaba/nacos/issues/4701"
},
{
"name": "https://github.com/advisories/GHSA-36hp-jr8h-556f",
"refsource": "CONFIRM",
"url": "https://github.com/advisories/GHSA-36hp-jr8h-556f"
},
{
"name": "https://github.com/alibaba/nacos/pull/4703",
"refsource": "MISC",
"url": "https://github.com/alibaba/nacos/pull/4703"
}
]
},
"source": {
"advisory": "GHSA-36hp-jr8h-556f",
"discovery": "UNKNOWN"
}
},
"gitlab.com": {
"advisories": [
{
"affected_range": "(,1.4.1)",
"affected_versions": "All versions before 1.4.1",
"cvss_v2": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
"cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"cwe_ids": [
"CWE-1035",
"CWE-290",
"CWE-937"
],
"date": "2021-05-07",
"description": "Nacos is a platform designed for dynamic service discovery and configuration and service management. In Nacos, when configured to use authentication `-Dnacos.core.auth.enabled=true` it uses the `AuthFilter` servlet filter to enforce authentication. This filter has a backdoor that enables Nacos servers to bypass this filter and therefore skip authentication checks. This mechanism relies on the user-agent HTTP header so it can be easily spoofed. This issue may allow any user to carry out any administrative tasks on the Nacos server.",
"fixed_versions": [
"1.4.1"
],
"identifier": "CVE-2021-29441",
"identifiers": [
"CVE-2021-29441",
"GHSA-36hp-jr8h-556f"
],
"not_impacted": "All versions starting from 1.4.1",
"package_slug": "maven/com.alibaba.nacos/nacos-api",
"pubdate": "2021-04-27",
"solution": "Upgrade to version 1.4.1 or above.",
"title": "Authentication Bypass by Spoofing",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2021-29441"
],
"uuid": "ada86c5f-18a6-494d-b750-39f1d792753d"
},
{
"affected_range": "(,1.4.1)",
"affected_versions": "All versions before 1.4.1",
"cvss_v2": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
"cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"cwe_ids": [
"CWE-1035",
"CWE-290",
"CWE-937"
],
"date": "2021-05-10",
"description": "Nacos is a platform designed for dynamic service discovery and configuration and service management. In Nacos before version 1.4.1, when configured to use authentication (-Dnacos.core.auth.enabled=true) Nacos uses the AuthFilter servlet filter to enforce authentication. This filter has a backdoor that enables Nacos servers to bypass this filter and therefore skip authentication checks. This mechanism relies on the user-agent HTTP header so it can be easily spoofed. This issue may allow any user to carry out any administrative tasks on the Nacos server.",
"fixed_versions": [
"1.4.1"
],
"identifier": "CVE-2021-29441",
"identifiers": [
"GHSA-36hp-jr8h-556f",
"CVE-2021-29441"
],
"not_impacted": "All versions starting from 1.4.1",
"package_slug": "maven/com.alibaba.nacos/nacos-common",
"pubdate": "2021-04-27",
"solution": "Upgrade to version 1.4.1 or above.",
"title": "Authentication Bypass by Spoofing",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2021-29441",
"https://github.com/alibaba/nacos/issues/4701",
"https://github.com/alibaba/nacos/pull/4703",
"https://github.com/advisories/GHSA-36hp-jr8h-556f"
],
"uuid": "8b7fd1cc-c554-4039-9c15-badc7a8d83be"
}
]
},
"nvd.nist.gov": {
"configurations": {
"CVE_data_version": "4.0",
"nodes": [
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:alibaba:nacos:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "1.4.1",
"vulnerable": true
}
],
"operator": "OR"
}
]
},
"cve": {
"CVE_data_meta": {
"ASSIGNER": "security-advisories@github.com",
"ID": "CVE-2021-29441"
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "en",
"value": "Nacos is a platform designed for dynamic service discovery and configuration and service management. In Nacos before version 1.4.1, when configured to use authentication (-Dnacos.core.auth.enabled=true) Nacos uses the AuthFilter servlet filter to enforce authentication. This filter has a backdoor that enables Nacos servers to bypass this filter and therefore skip authentication checks. This mechanism relies on the user-agent HTTP header so it can be easily spoofed. This issue may allow any user to carry out any administrative tasks on the Nacos server."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "en",
"value": "CWE-290"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/alibaba/nacos/issues/4701",
"refsource": "MISC",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://github.com/alibaba/nacos/issues/4701"
},
{
"name": "https://github.com/advisories/GHSA-36hp-jr8h-556f",
"refsource": "CONFIRM",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://github.com/advisories/GHSA-36hp-jr8h-556f"
},
{
"name": "https://github.com/alibaba/nacos/pull/4703",
"refsource": "MISC",
"tags": [
"Patch",
"Third Party Advisory"
],
"url": "https://github.com/alibaba/nacos/pull/4703"
}
]
}
},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 7.5,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "HIGH",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9
}
},
"lastModifiedDate": "2021-05-07T23:09Z",
"publishedDate": "2021-04-27T21:15Z"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
Loading…
Loading…