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119 lines
3.9 KiB
JSON
119 lines
3.9 KiB
JSON
{
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"id": "CVE-2023-38691",
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"sourceIdentifier": "security-advisories@github.com",
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"published": "2023-08-04T17:15:11.063",
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"lastModified": "2023-08-11T19:34:52.207",
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"vulnStatus": "Analyzed",
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"descriptions": [
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{
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"lang": "en",
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"value": "matrix-appservice-bridge provides an API for setting up bridges. Starting in version 4.0.0 and prior to versions 8.1.2 and 9.0.1, a malicious Matrix server can use a foreign user's MXID in an OpenID exchange, allowing a bad actor to impersonate users when using the provisioning API. The library does not check that the servername part of the `sub` parameter (containing the user's *claimed* MXID) is the the same as the servername we are talking to. A malicious actor could spin up a server on any given domain, respond with a `sub` parameter according to the user they want to act as and use the resulting token to perform provisioning requests. Versions 8.1.2 and 9.0.1 contain a patch. As a workaround, disable the provisioning API."
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}
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],
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"metrics": {
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"cvssMetricV31": [
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{
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"source": "nvd@nist.gov",
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"type": "Primary",
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"cvssData": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"privilegesRequired": "LOW",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "NONE",
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"availabilityImpact": "NONE",
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"baseScore": 6.5,
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"baseSeverity": "MEDIUM"
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},
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"exploitabilityScore": 2.8,
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"impactScore": 3.6
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},
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{
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"source": "security-advisories@github.com",
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"type": "Secondary",
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"cvssData": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N",
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"privilegesRequired": "LOW",
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"userInteraction": "NONE",
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"scope": "CHANGED",
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"confidentialityImpact": "LOW",
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"integrityImpact": "NONE",
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"availabilityImpact": "NONE",
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"baseScore": 5.0,
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"baseSeverity": "MEDIUM"
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},
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"exploitabilityScore": 3.1,
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"impactScore": 1.4
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}
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]
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},
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"weaknesses": [
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{
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"source": "nvd@nist.gov",
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"type": "Primary",
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"description": [
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{
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"lang": "en",
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"value": "CWE-287"
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}
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]
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},
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{
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"source": "security-advisories@github.com",
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"type": "Secondary",
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"description": [
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{
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"lang": "en",
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"value": "CWE-287"
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}
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]
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}
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],
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"configurations": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:a:matrix:matrix-appservice-bridge:*:*:*:*:*:node.js:*:*",
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"versionStartIncluding": "4.0.0",
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"versionEndExcluding": "8.1.2",
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"matchCriteriaId": "DC6F33A1-2DFE-4F73-8C67-45C4782AC792"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:a:matrix:matrix-appservice-bridge:9.0.0:*:*:*:*:node.js:*:*",
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"matchCriteriaId": "40415786-C971-407F-9E51-9C5203B4F2CB"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://github.com/matrix-org/matrix-appservice-bridge/commit/4c6723a5e7beda65cdf1ae5dbb882e8beaac8552",
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"source": "security-advisories@github.com",
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"tags": [
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"Patch"
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]
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},
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{
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"url": "https://github.com/matrix-org/matrix-appservice-bridge/security/advisories/GHSA-vc7j-h8xg-fv5x",
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"source": "security-advisories@github.com",
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"tags": [
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"Third Party Advisory"
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]
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}
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]
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} |