fkie_cve-2021-31878
Vulnerability from fkie_nvd
Published
2021-07-30 14:15
Modified
2024-11-21 06:06
Severity ?
Summary
An issue was discovered in PJSIP in Asterisk before 16.19.1 and before 18.5.1. To exploit, a re-INVITE without SDP must be received after Asterisk has sent a BYE request.
References
Impacted products
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:digium:asterisk:16.17.0:*:*:*:*:*:*:*",
"matchCriteriaId": "4793E23F-97F7-4F87-B521-1718AA6FAD06",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:digium:asterisk:16.18.0:*:*:*:*:*:*:*",
"matchCriteriaId": "E01BD9F9-857A-4114-80D6-9F43B230EF3D",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:digium:asterisk:16.19.0:*:*:*:*:*:*:*",
"matchCriteriaId": "00B876D8-5BE7-4F40-9692-4C7C6EE49611",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:digium:asterisk:18.3.0:*:*:*:*:*:*:*",
"matchCriteriaId": "78681A97-2B41-494E-AA7A-3BB953E8497B",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:digium:asterisk:18.4.0:*:*:*:*:*:*:*",
"matchCriteriaId": "54266F33-D604-491F-9891-C9D8A1B68135",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:digium:asterisk:18.5.0:*:*:*:*:*:*:*",
"matchCriteriaId": "F4CC9EFF-8916-46E6-97ED-39035541E350",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "An issue was discovered in PJSIP in Asterisk before 16.19.1 and before 18.5.1. To exploit, a re-INVITE without SDP must be received after Asterisk has sent a BYE request."
},
{
"lang": "es",
"value": "Se ha detectado un problema en PJSIP en Asterisk versiones anteriores a 16.19.1 y versiones anteriores a 18.5.1. Para explotarlo, se debe recibir un re-INVITE sin SDP despu\u00e9s de que Asterisk haya enviado una petici\u00f3n BYE"
}
],
"id": "CVE-2021-31878",
"lastModified": "2024-11-21T06:06:24.867",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "SINGLE",
"availabilityImpact": "PARTIAL",
"baseScore": 4.0,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 8.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2021-07-30T14:15:16.690",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Patch",
"Vendor Advisory"
],
"url": "http://downloads.asterisk.org/pub/security/AST-2021-007.html"
},
{
"source": "cve@mitre.org",
"tags": [
"Patch",
"Third Party Advisory",
"VDB Entry"
],
"url": "http://packetstormsecurity.com/files/163638/Asterisk-Project-Security-Advisory-AST-2021-007.html"
},
{
"source": "cve@mitre.org",
"tags": [
"Mailing List",
"Patch",
"Third Party Advisory"
],
"url": "http://seclists.org/fulldisclosure/2021/Jul/48"
},
{
"source": "cve@mitre.org",
"tags": [
"Patch",
"Vendor Advisory"
],
"url": "https://downloads.digium.com/pub/security/AST-2021-007.html"
},
{
"source": "cve@mitre.org",
"tags": [
"Exploit",
"Issue Tracking",
"Vendor Advisory"
],
"url": "https://issues.asterisk.org/jira/browse/ASTERISK-29381"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch",
"Vendor Advisory"
],
"url": "http://downloads.asterisk.org/pub/security/AST-2021-007.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch",
"Third Party Advisory",
"VDB Entry"
],
"url": "http://packetstormsecurity.com/files/163638/Asterisk-Project-Security-Advisory-AST-2021-007.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Mailing List",
"Patch",
"Third Party Advisory"
],
"url": "http://seclists.org/fulldisclosure/2021/Jul/48"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch",
"Vendor Advisory"
],
"url": "https://downloads.digium.com/pub/security/AST-2021-007.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Issue Tracking",
"Vendor Advisory"
],
"url": "https://issues.asterisk.org/jira/browse/ASTERISK-29381"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-617"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.