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Auto-merge PR#1359
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CVE Team 2021-04-15 17:00:22 -04:00 committed by GitHub
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2021/29xxx/CVE-2021-29431.json
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{
"data_type": "CVE",
"data_format": "MITRE",
"data_version": "4.0",
"CVE_data_meta": {
"ASSIGNER": "security-advisories@github.com",
"ID": "CVE-2021-29431",
"ASSIGNER": "cve@mitre.org",
"STATE": "RESERVED"
"STATE": "PUBLIC",
"TITLE": "SSRF in Sydent due to missing validation of hostnames"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "sydent",
"version": {
"version_data": [
{
"version_value": "< 2.3.0"
}
]
}
}
]
},
"vendor_name": "matrix-org"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided."
"value": "Sydent is a reference Matrix identity server. Sydent can be induced to send HTTP GET requests to internal systems, due to lack of parameter validation or IP address blacklisting. It is not possible to exfiltrate data or control request headers, but it might be possible to use the attack to perform an internal port enumeration. This issue has been addressed in in 9e57334, 8936925, 3d531ed, 0f00412. A potential workaround would be to use a firewall to ensure that Sydent cannot reach internal HTTP resources."
}
]
},
"impact": {
"cvss": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.7,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "{\"CWE-20\":\"Improper Input Validation\"}"
}
]
},
{
"description": [
{
"lang": "eng",
"value": "CWE-918 Server-Side Request Forgery (SSRF)"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/matrix-org/sydent/security/advisories/GHSA-9jhm-8m8c-c3f4",
"refsource": "CONFIRM",
"url": "https://github.com/matrix-org/sydent/security/advisories/GHSA-9jhm-8m8c-c3f4"
},
{
"name": "https://pypi.org/project/matrix-sydent/",
"refsource": "MISC",
"url": "https://pypi.org/project/matrix-sydent/"
},
{
"name": "https://github.com/matrix-org/sydent/commit/9e573348d81df8191bbe8c266c01999c9d57cd5f",
"refsource": "MISC",
"url": "https://github.com/matrix-org/sydent/commit/9e573348d81df8191bbe8c266c01999c9d57cd5f"
},
{
"name": "https://github.com/matrix-org/sydent/commit/8936925f561b0c352c2fa922d5097d7245aad00a",
"refsource": "MISC",
"url": "https://github.com/matrix-org/sydent/commit/8936925f561b0c352c2fa922d5097d7245aad00a"
},
{
"name": "https://github.com/matrix-org/sydent/commit/3d531ed50d2fd41ac387f36d44d3fb2c62dd22d3",
"refsource": "MISC",
"url": "https://github.com/matrix-org/sydent/commit/3d531ed50d2fd41ac387f36d44d3fb2c62dd22d3"
},
{
"name": "https://github.com/matrix-org/sydent/commit/0f00412017f25619bc36c264b29ea96808bf310a",
"refsource": "MISC",
"url": "https://github.com/matrix-org/sydent/commit/0f00412017f25619bc36c264b29ea96808bf310a"
},
{
"name": "https://github.com/matrix-org/sydent/releases/tag/v2.3.0",
"refsource": "MISC",
"url": "https://github.com/matrix-org/sydent/releases/tag/v2.3.0"
}
]
},
"source": {
"advisory": "GHSA-9jhm-8m8c-c3f4",
"discovery": "UNKNOWN"
}
}