CVE-2020-13270

Missing permission check on fork relation creation in GitLab CE/EE 11.3 and later through 13.0.1 allows guest users to create a fork relation on restricted public projects via API

CVSS v3.0 8.8 HIGH
CVSS v2.0 6.5 MEDIUM

8.8^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.5^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://gitlab.com/gitlab-org/gitlab/-/issues/24648	Broken Link Vendor Advisory
https://hackerone.com/reports/419977	Permissions Required Third Party Advisory
https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13270.json	Vendor Advisory

Advertisement

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:gitlab:gitlab:::::community:::*
	cpe:2.3:a:gitlab:gitlab:::::enterprise:::*
	cpe:2.3:a:gitlab:gitlab:::::community:::*
	cpe:2.3:a:gitlab:gitlab:::::enterprise:::*
	cpe:2.3:a:gitlab:gitlab:::::community:::*
	cpe:2.3:a:gitlab:gitlab:::::enterprise:::*

Information

Published : 2020-06-10 08:15

Updated : 2022-07-12 10:42

NVD link : CVE-2020-13270

Mitre link : CVE-2020-13270

JSON object : View

CWE

CWE-862

Missing Authorization

Advertisement

Products Affected

gitlab

gitlab

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://gitlab.com/gitlab-org/gitlab/-/issues/24648", "name": "https://gitlab.com/gitlab-org/gitlab/-/issues/24648", "tags": ["Broken Link", "Vendor Advisory"], "refsource": "MISC"}, {"url": "https://hackerone.com/reports/419977", "name": "https://hackerone.com/reports/419977", "tags": ["Permissions Required", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13270.json", "name": "https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13270.json", "tags": ["Vendor Advisory"], "refsource": "CONFIRM"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "Missing permission check on fork relation creation in GitLab CE/EE 11.3 and later through 13.0.1 allows guest users to create a fork relation on restricted public projects via API"}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-862"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2020-13270", "ASSIGNER": "cve@gitlab.com"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 6.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "authentication": "SINGLE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "severity": "MEDIUM", "acInsufInfo": false, "impactScore": 6.4, "obtainAllPrivilege": false, "exploitabilityScore": 8.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}}, "publishedDate": "2020-06-10T15:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "12.10.7", "versionStartIncluding": "12.10.0"}, {"cpe23Uri": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "12.10.7", "versionStartIncluding": "12.10.0"}, {"cpe23Uri": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "13.0.1", "versionStartIncluding": "13.0.0"}, {"cpe23Uri": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "13.0.1", "versionStartIncluding": "13.0.0"}, {"cpe23Uri": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "11.9.8", "versionStartIncluding": "11.3.0"}, {"cpe23Uri": "cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "12.9.8", "versionStartIncluding": "11.3.0"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2022-07-12T17:42Z"}