CVE-2018-14655

A flaw was found in Keycloak 3.4.3.Final, 4.0.0.Beta2, 4.3.0.Final. When using 'response_mode=form_post' it is possible to inject arbitrary Javascript-Code via the 'state'-parameter in the authentication URL. This allows an XSS-Attack upon succesfully login.

CVSS v3 5.4 MEDIUM
CVSS v2.0 3.5 LOW

5.4^/10

CVSS v3 : MEDIUM

Vector : AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

3.5^/10

CVSS v2.0 : LOW

Vector : AV:N/AC:M/Au:S/C:N/I:P/A:N

Exploitability : 6.8 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication SINGLE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://access.redhat.com/errata/RHSA-2018:3592	Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:3593	Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:3595	Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14655	Issue Tracking Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:redhat:keycloak:3.4.3:::::::*
	cpe:2.3:a:redhat:keycloak:4.0.0:beta2::::::
	cpe:2.3:a:redhat:keycloak:4.3.0:::::::*

Configuration 2 (hide)

AND

cpe:2.3:a:redhat:single_sign-on:7.2:*:*:*:*:*:*:*

cpe:2.3:o:redhat:linux:7.0:*:*:*:*:*:*:*

Configuration 3 (hide)

AND

cpe:2.3:a:redhat:single_sign-on:7.2:*:*:*:*:*:*:*

cpe:2.3:o:redhat:linux:6.0:*:*:*:*:*:*:*

Configuration 4 (hide)

cpe:2.3:a:redhat:single_sign-on:-:*:*:*:text-only:*:*:*

History

No history.

Information

Published : 2018-11-13 19:29

Updated : 2024-02-04 20:03

NVD link : CVE-2018-14655

Mitre link : CVE-2018-14655

CVE.ORG link : CVE-2018-14655

JSON object : View

Products Affected

redhat

single_sign-on
linux
keycloak

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

{"id": "CVE-2018-14655", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 3.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N", "authentication": "SINGLE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "NONE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "LOW", "obtainAllPrivilege": false, "exploitabilityScore": 6.8, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}], "cvssMetricV30": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.0", "baseScore": 5.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 2.3}, {"type": "Secondary", "source": "secalert@redhat.com", "cvssData": {"scope": "UNCHANGED", "version": "3.0", "baseScore": 4.6, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 2.5, "exploitabilityScore": 2.1}]}, "published": "2018-11-13T19:29:00.307", "references": [{"url": "https://access.redhat.com/errata/RHSA-2018:3592", "tags": ["Vendor Advisory"], "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2018:3593", "tags": ["Vendor Advisory"], "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2018:3595", "tags": ["Vendor Advisory"], "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14655", "tags": ["Issue Tracking", "Vendor Advisory"], "source": "secalert@redhat.com"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-79"}]}, {"type": "Secondary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "A flaw was found in Keycloak 3.4.3.Final, 4.0.0.Beta2, 4.3.0.Final. When using 'response_mode=form_post' it is possible to inject arbitrary Javascript-Code via the 'state'-parameter in the authentication URL. This allows an XSS-Attack upon succesfully login."}, {"lang": "es", "value": "Se ha descubierto un error en Keycloak 3.4.3.Final, 4.0.0.Beta2 y 4.3.0.Final. Al emplear \"response_mode=form_post\", es posible inyectar c\u00f3digo JavaScript arbitrario mediante el par\u00e1metro \"state\" en la URL de autenticaci\u00f3n. Esto permite un ataque Cross-Site Scripting (XSS) al iniciar sesi\u00f3n exitosamente."}], "lastModified": "2019-10-09T23:35:07.390", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:redhat:keycloak:3.4.3:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3D602684-69EC-4051-AF5B-02595A16BEBA"}, {"criteria": "cpe:2.3:a:redhat:keycloak:4.0.0:beta2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "91B84EB8-4384-4638-9033-914B0F378D46"}, {"criteria": "cpe:2.3:a:redhat:keycloak:4.3.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "45BFBB51-AC74-453F-B24D-2BB1E04BD410"}], "operator": "OR"}]}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:redhat:single_sign-on:7.2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FABBE0BB-135A-458C-BD84-54C052FFDC57"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:redhat:linux:7.0:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "29B186E5-7C2F-466E-AA4A-8F2B618F8A14"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:redhat:single_sign-on:7.2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FABBE0BB-135A-458C-BD84-54C052FFDC57"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:redhat:linux:6.0:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "2DFA94D5-0139-490C-8257-0751FE9FBAE4"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:redhat:single_sign-on:-:*:*:*:text-only:*:*:*", "vulnerable": true, "matchCriteriaId": "341E6313-20D5-44CB-9719-B20585DC5AD6"}], "operator": "OR"}]}], "sourceIdentifier": "secalert@redhat.com"}