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{"id": "CVE-2023-33983", "vendorId": null, "type": "cve", "bulletinFamily": "NVD", "title": "CVE-2023-33983", "description": "The Introduction Client in Briar through 1.5.3 does not implement out-of-band verification for the public keys of introducees. An introducer can launch man-in-the-middle attacks against later private communication between two introduced parties.", "published": "2023-05-24T18:15:00", "modified": "2023-06-01T14:10:00", "epss": [{"cve": "CVE-2023-33983", "epss": 0.00079, "percentile": 0.32972, "modified": "2023-07-23"}], "cvss": {"score": 4.0, "vector": "AV:N/AC:H/Au:N/C:P/I:P/A:N"}, "cvss2": {"cvssV2": {"version": "2.0", "vectorString": "AV:N/AC:H/Au:N/C:P/I:P/A:N", "accessVector": "NETWORK", "accessComplexity": "HIGH", "authentication": "NONE", "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "availabilityImpact": "NONE", "baseScore": 4.0}, "severity": "MEDIUM", "exploitabilityScore": 4.9, "impactScore": 4.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "cvss3": {"cvssV3": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE", "baseScore": 7.4, "baseSeverity": "HIGH"}, "exploitabilityScore": 2.2, "impactScore": 5.2}, "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-33983", "reporter": "cve@mitre.org", "references": ["https://ethz.ch/content/dam/ethz/special-interest/infk/inst-infsec/appliedcrypto/education/theses/report_YuanmingSong.pdf"], "cvelist": ["CVE-2023-33983"], "immutableFields": [], "lastseen": "2023-07-24T06:26:39", "viewCount": 10, "enchantments": {"score": {"value": 7.0, "vector": "NONE"}, "vulnersScore": 7.0}, "_state": {"score": 1690180362, "dependencies": 1690180223}, "_internal": {"score_hash": "edcd68ca7fc35684be12dc3ee24d3658"}, "cna_cvss": {"cna": "mitre", "cvss": {}}, "cpe": ["cpe:/a:briarproject:briar:1.5.3"], "cpe23": ["cpe:2.3:a:briarproject:briar:1.5.3:*:*:*:*:*:*:*"], "cwe": ["CWE-862"], "affectedSoftware": [{"cpeName": "briarproject:briar", "version": "1.5.3", "operator": "le", "name": "briarproject briar"}], "affectedConfiguration": [], "cpeConfiguration": {"CVE_data_version": "4.0", "nodes": [{"operator": "OR", "children": [], "cpe_match": [{"vulnerable": true, "cpe23Uri": "cpe:2.3:a:briarproject:briar:1.5.3:*:*:*:*:*:*:*", "versionEndIncluding": "1.5.3", "cpe_name": []}]}]}, "extraReferences": [{"url": "https://ethz.ch/content/dam/ethz/special-interest/infk/inst-infsec/appliedcrypto/education/theses/report_YuanmingSong.pdf", "name": "https://ethz.ch/content/dam/ethz/special-interest/infk/inst-infsec/appliedcrypto/education/theses/report_YuanmingSong.pdf", "refsource": "MISC", "tags": ["Exploit", "Technical Description", "Third Party Advisory"]}], "product_info": [{"vendor": "Briarproject", "product": "Briar"}], "solutions": [], "workarounds": [], "impacts": [], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "n/a"}]}], "exploits": [], "assigned": "2023-05-24T00:00:00"}

{"prion": [{"lastseen": "2023-08-15T14:39:27", "description": "The Introduction Client in Briar through 1.5.3 does not implement out-of-band verification for the public keys of introducees. An introducer can launch man-in-the-middle attacks against later private communication between two introduced parties.", "cvss3": {"exploitabilityScore": 2.2, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 7.4, "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.2}, "published": "2023-05-24T18:15:00", "type": "prion", "title": "CVE-2023-33983", "bulletinFamily": "NVD", "cvss2": {"severity": "MEDIUM", "exploitabilityScore": 4.9, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "HIGH", "confidentialityImpact": "PARTIAL", "availabilityImpact": "NONE", "integrityImpact": "PARTIAL", "baseScore": 4.0, "vectorString": "AV:N/AC:H/Au:N/C:P/I:P/A:N", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 4.9, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2023-33983"], "modified": "2023-06-01T14:10:00", "id": "PRION:CVE-2023-33983", "href": "https://kb.prio-n.com/vulnerability/CVE-2023-33983", "cvss": {"score": 4.0, "vector": "AV:N/AC:H/Au:N/C:P/I:P/A:N"}}]}