CVE-2019-16948

An SSRF issue was discovered in Enghouse Web Chat 6.1.300.31. In any POST request, one can replace the port number at WebServiceLocation=http://localhost:8085/UCWebServices/ with a range of ports to determine what is visible on the internal network (as opposed to what general web traffic would see on the product's host). The response from open ports is different than from closed ports. The product does not allow one to change the protocol: anything except http(s) will throw an error; however, it is the type of error that allows one to determine if a port is open or not.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://mjlanders.com/2019/11/07/multiple-vulnerabilities-found-in-enghouse-zeacom-web-chat/	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:enghouse:web_chat:6.1.300.31:*:*:*:*:*:*:*

History

No history.

Information

Published : 2019-11-13 17:15

Updated : 2024-02-28 17:28

NVD link : CVE-2019-16948

Mitre link : CVE-2019-16948

CVE.ORG link : CVE-2019-16948

JSON object : View

Products Affected

enghouse

web_chat

CWE

CWE-918

Server-Side Request Forgery (SSRF)

{"id": "CVE-2019-16948", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2019-11-13T17:15:13.740", "references": [{"url": "https://mjlanders.com/2019/11/07/multiple-vulnerabilities-found-in-enghouse-zeacom-web-chat/", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-918"}]}], "descriptions": [{"lang": "en", "value": "An SSRF issue was discovered in Enghouse Web Chat 6.1.300.31. In any POST request, one can replace the port number at WebServiceLocation=http://localhost:8085/UCWebServices/ with a range of ports to determine what is visible on the internal network (as opposed to what general web traffic would see on the product's host). The response from open ports is different than from closed ports. The product does not allow one to change the protocol: anything except http(s) will throw an error; however, it is the type of error that allows one to determine if a port is open or not."}, {"lang": "es", "value": "Se descubri\u00f3 un problema de tipo SSRF en Enghouse Web Chat versi\u00f3n 6.1.300.31. En cualquier petici\u00f3n POST, se puede reemplazar el n\u00famero de puerto en WebServiceLocation=http://localhost:8085/UCWebServices/ con un rango de puertos para determinar qu\u00e9 es visible en la red interna (a diferencia de lo que el tr\u00e1fico web general ver\u00eda en el host del producto). La respuesta de los puertos abiertos es diferente a la de los puertos cerrados. El producto no permite que uno cambie el protocolo: cualquier cosa excepto http(s) arrojar\u00e1 un error; sin embargo, es el tipo de error que permite determinar si un puerto est\u00e1 abierto o no."}], "lastModified": "2019-11-18T15:13:42.757", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:enghouse:web_chat:6.1.300.31:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "ADECAF52-1FE4-4CB5-8128-0855A26B4424"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}