CVE-2023-5554 - Vulnerability Details - OpenCVE

Description

Lack of TLS certificate verification in log transmission of a financial module within LINE client for iOS prior to 13.16.0.

Published: 2023-10-12

Score: 4.8 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

LINE Corporation

LINE client for iOS

affected

Version	Status	Constraints
`13.12.0`	affected	< 13.16.0

Configuration 1 [-]

cpe:2.3:a:linecorp:line:*:*:*:*:*:iphone_os:*:*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2023-57854	Lack of TLS certificate verification in log transmission of a financial module within LINE Client for iOS prior to 13.16.0.

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00137.

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://hackerone.com/reports/2106827

History

Tue, 09 Dec 2025 07:45:00 +0000

Type	Values Removed	Values Added
Description	Lack of TLS certificate verification in log transmission of a financial module within LINE Client for iOS prior to 13.16.0.	Lack of TLS certificate verification in log transmission of a financial module within LINE client for iOS prior to 13.16.0.

Wed, 18 Sep 2024 18:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Subscriptions

Linecorp Line

MITRE

Status: PUBLISHED

Assigner: LINE

Published: 2023-10-12T09:34:01.586Z

Updated: 2025-12-09T07:26:14.524Z

Reserved: 2023-10-12T09:17:12.045Z

Link: CVE-2023-5554

Vulnrichment

Updated: 2024-08-02T07:59:44.896Z

NVD

Status : Modified

Published: 2023-10-12T10:15:13.397

Modified: 2024-11-21T08:42:00.210

Link: CVE-2023-5554

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-295

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2023-5554", "assignerOrgId": "657f3255-0560-4aed-82e4-7f579ec6acfb", "state": "PUBLISHED", "assignerShortName": "LINE", "dateReserved": "2023-10-12T09:17:12.045Z", "datePublished": "2023-10-12T09:34:01.586Z", "dateUpdated": "2025-12-09T07:26:14.524Z"}, "containers": {"cna": {"affected": [{"vendor": "LINE Corporation", "product": "LINE client for iOS", "versions": [{"version": "13.12.0", "status": "affected", "versionType": "custom", "lessThan": "13.16.0"}]}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "na"}]}], "descriptions": [{"lang": "en", "value": "Lack of TLS certificate verification in log transmission of a financial module within LINE client for iOS prior to 13.16.0."}], "references": [{"url": "https://hackerone.com/reports/2106827"}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE", "baseScore": 4.8, "baseSeverity": "MEDIUM", "exploitCodeMaturity": "NOT_DEFINED", "remediationLevel": "NOT_DEFINED", "reportConfidence": "NOT_DEFINED", "temporalScore": 4.8, "temporalSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NETWORK", "modifiedAttackComplexity": "HIGH", "modifiedPrivilegesRequired": "NONE", "modifiedUserInteraction": "NONE", "modifiedScope": "UNCHANGED", "modifiedConfidentialityImpact": "LOW", "modifiedIntegrityImpact": "LOW", "modifiedAvailabilityImpact": "NONE", "environmentalScore": 4.8, "environmentalSeverity": "MEDIUM"}}], "providerMetadata": {"orgId": "657f3255-0560-4aed-82e4-7f579ec6acfb", "shortName": "LY-Corporation", "dateUpdated": "2025-12-09T07:26:14.524Z"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T07:59:44.896Z"}, "title": "CVE Program Container", "references": [{"url": "https://hackerone.com/reports/2106827", "tags": ["x_transferred"]}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-09-18T17:49:17.224369Z", "id": "CVE-2023-5554", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-18T17:50:42.920Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://hackerone.com/reports/2106827", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T07:59:44.896Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-5554", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-18T17:49:17.224369Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-18T17:49:26.621Z"}}], "cna": {"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.8, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N", "modifiedScope": "UNCHANGED", "temporalScore": 4.8, "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "remediationLevel": "NOT_DEFINED", "reportConfidence": "NOT_DEFINED", "temporalSeverity": "MEDIUM", "availabilityImpact": "NONE", "environmentalScore": 4.8, "privilegesRequired": "NONE", "exploitCodeMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NETWORK", "confidentialityImpact": "LOW", "environmentalSeverity": "MEDIUM", "availabilityRequirement": "NOT_DEFINED", "modifiedIntegrityImpact": "LOW", "modifiedUserInteraction": "NONE", "modifiedAttackComplexity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAvailabilityImpact": "NONE", "modifiedPrivilegesRequired": "NONE", "modifiedConfidentialityImpact": "LOW"}}], "affected": [{"vendor": "LINE Corporation", "product": "LINE client for iOS", "versions": [{"status": "affected", "version": "13.12.0", "lessThan": "13.16.0", "versionType": "custom"}]}], "references": [{"url": "https://hackerone.com/reports/2106827"}], "descriptions": [{"lang": "en", "value": "Lack of TLS certificate verification in log transmission of a financial module within LINE client for iOS prior to 13.16.0."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "na"}]}], "providerMetadata": {"orgId": "657f3255-0560-4aed-82e4-7f579ec6acfb", "shortName": "LY-Corporation", "dateUpdated": "2025-12-09T07:26:14.524Z"}}}, "cveMetadata": {"cveId": "CVE-2023-5554", "state": "PUBLISHED", "dateUpdated": "2025-12-09T07:26:14.524Z", "dateReserved": "2023-10-12T09:17:12.045Z", "assignerOrgId": "657f3255-0560-4aed-82e4-7f579ec6acfb", "datePublished": "2023-10-12T09:34:01.586Z", "assignerShortName": "LINE"}, "dataVersion": "5.2"}