GSD-2019-14870
Vulnerability from gsd - Updated: 2023-12-13 01:23Details
All Samba versions 4.x.x before 4.9.17, 4.10.x before 4.10.11 and 4.11.x before 4.11.3 have an issue, where the S4U (MS-SFU) Kerberos delegation model includes a feature allowing for a subset of clients to be opted out of constrained delegation in any way, either S4U2Self or regular Kerberos authentication, by forcing all tickets for these clients to be non-forwardable. In AD this is implemented by a user attribute delegation_not_allowed (aka not-delegated), which translates to disallow-forwardable. However the Samba AD DC does not do that for S4U2Self and does set the forwardable flag even if the impersonated client has the not-delegated flag set.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2019-14870",
"description": "All Samba versions 4.x.x before 4.9.17, 4.10.x before 4.10.11 and 4.11.x before 4.11.3 have an issue, where the S4U (MS-SFU) Kerberos delegation model includes a feature allowing for a subset of clients to be opted out of constrained delegation in any way, either S4U2Self or regular Kerberos authentication, by forcing all tickets for these clients to be non-forwardable. In AD this is implemented by a user attribute delegation_not_allowed (aka not-delegated), which translates to disallow-forwardable. However the Samba AD DC does not do that for S4U2Self and does set the forwardable flag even if the impersonated client has the not-delegated flag set.",
"id": "GSD-2019-14870",
"references": [
"https://www.suse.com/security/cve/CVE-2019-14870.html",
"https://ubuntu.com/security/CVE-2019-14870",
"https://advisories.mageia.org/CVE-2019-14870.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2019-14870"
],
"details": "All Samba versions 4.x.x before 4.9.17, 4.10.x before 4.10.11 and 4.11.x before 4.11.3 have an issue, where the S4U (MS-SFU) Kerberos delegation model includes a feature allowing for a subset of clients to be opted out of constrained delegation in any way, either S4U2Self or regular Kerberos authentication, by forcing all tickets for these clients to be non-forwardable. In AD this is implemented by a user attribute delegation_not_allowed (aka not-delegated), which translates to disallow-forwardable. However the Samba AD DC does not do that for S4U2Self and does set the forwardable flag even if the impersonated client has the not-delegated flag set.",
"id": "GSD-2019-14870",
"modified": "2023-12-13T01:23:52.657832Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
"cve.org": {
"CVE_data_meta": {
"ASSIGNER": "secalert@redhat.com",
"ID": "CVE-2019-14870",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "samba",
"version": {
"version_data": [
{
"version_value": "all versions 4.11.x before 4.11.3"
},
{
"version_value": "all versions 4.10.x before 4.10.11"
},
{
"version_value": "all versions 4.x.x before 4.9.17"
}
]
}
}
]
},
"vendor_name": "Red Hat"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "All Samba versions 4.x.x before 4.9.17, 4.10.x before 4.10.11 and 4.11.x before 4.11.3 have an issue, where the S4U (MS-SFU) Kerberos delegation model includes a feature allowing for a subset of clients to be opted out of constrained delegation in any way, either S4U2Self or regular Kerberos authentication, by forcing all tickets for these clients to be non-forwardable. In AD this is implemented by a user attribute delegation_not_allowed (aka not-delegated), which translates to disallow-forwardable. However the Samba AD DC does not do that for S4U2Self and does set the forwardable flag even if the impersonated client has the not-delegated flag set."
}
]
},
"impact": {
"cvss": [
[
{
"vectorString": "5.4/CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
"version": "3.0"
}
]
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-285"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14870",
"refsource": "CONFIRM",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14870"
},
{
"name": "USN-4217-1",
"refsource": "UBUNTU",
"url": "https://usn.ubuntu.com/4217-1/"
},
{
"name": "https://security.netapp.com/advisory/ntap-20191210-0002/",
"refsource": "CONFIRM",
"url": "https://security.netapp.com/advisory/ntap-20191210-0002/"
},
{
"name": "https://www.samba.org/samba/security/CVE-2019-14870.html",
"refsource": "CONFIRM",
"url": "https://www.samba.org/samba/security/CVE-2019-14870.html"
},
{
"name": "USN-4217-2",
"refsource": "UBUNTU",
"url": "https://usn.ubuntu.com/4217-2/"
},
{
"name": "FEDORA-2019-be98a08835",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PJH3ROOFYMOATD2UEPC47P5RPBDTY77E/"
},
{
"name": "https://www.synology.com/security/advisory/Synology_SA_19_40",
"refsource": "CONFIRM",
"url": "https://www.synology.com/security/advisory/Synology_SA_19_40"
},
{
"name": "openSUSE-SU-2019:2700",
"refsource": "SUSE",
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00038.html"
},
{
"name": "FEDORA-2019-11dddb785b",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WNKA4YIPV7AZR7KK3GW6L3HKGHSGJZFE/"
},
{
"name": "GLSA-202003-52",
"refsource": "GENTOO",
"url": "https://security.gentoo.org/glsa/202003-52"
},
{
"name": "[debian-lts-announce] 20210529 [SECURITY] [DLA 2668-1] samba security update",
"refsource": "MLIST",
"url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00023.html"
},
{
"name": "[debian-lts-announce] 20221126 [SECURITY] [DLA 3206-1] heimdal security update",
"refsource": "MLIST",
"url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00034.html"
},
{
"name": "https://security.netapp.com/advisory/ntap-20230216-0008/",
"refsource": "CONFIRM",
"url": "https://security.netapp.com/advisory/ntap-20230216-0008/"
},
{
"name": "GLSA-202310-06",
"refsource": "GENTOO",
"url": "https://security.gentoo.org/glsa/202310-06"
}
]
}
},
"nvd.nist.gov": {
"configurations": {
"CVE_data_version": "4.0",
"nodes": [
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "4.10.11",
"versionStartIncluding": "4.10.0",
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "4.11.3",
"versionStartIncluding": "4.11.0",
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "4.9.17",
"versionStartIncluding": "4.0.0",
"vulnerable": true
}
],
"operator": "OR"
},
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
}
],
"operator": "OR"
},
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*",
"cpe_name": [],
"vulnerable": true
}
],
"operator": "OR"
},
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
}
],
"operator": "OR"
},
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
}
],
"operator": "OR"
}
]
},
"cve": {
"CVE_data_meta": {
"ASSIGNER": "secalert@redhat.com",
"ID": "CVE-2019-14870"
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "en",
"value": "All Samba versions 4.x.x before 4.9.17, 4.10.x before 4.10.11 and 4.11.x before 4.11.3 have an issue, where the S4U (MS-SFU) Kerberos delegation model includes a feature allowing for a subset of clients to be opted out of constrained delegation in any way, either S4U2Self or regular Kerberos authentication, by forcing all tickets for these clients to be non-forwardable. In AD this is implemented by a user attribute delegation_not_allowed (aka not-delegated), which translates to disallow-forwardable. However the Samba AD DC does not do that for S4U2Self and does set the forwardable flag even if the impersonated client has the not-delegated flag set."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "en",
"value": "CWE-287"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://www.samba.org/samba/security/CVE-2019-14870.html",
"refsource": "CONFIRM",
"tags": [
"Vendor Advisory"
],
"url": "https://www.samba.org/samba/security/CVE-2019-14870.html"
},
{
"name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14870",
"refsource": "CONFIRM",
"tags": [
"Issue Tracking",
"Third Party Advisory"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14870"
},
{
"name": "https://security.netapp.com/advisory/ntap-20191210-0002/",
"refsource": "CONFIRM",
"tags": [
"Third Party Advisory"
],
"url": "https://security.netapp.com/advisory/ntap-20191210-0002/"
},
{
"name": "USN-4217-1",
"refsource": "UBUNTU",
"tags": [
"Third Party Advisory"
],
"url": "https://usn.ubuntu.com/4217-1/"
},
{
"name": "USN-4217-2",
"refsource": "UBUNTU",
"tags": [
"Third Party Advisory"
],
"url": "https://usn.ubuntu.com/4217-2/"
},
{
"name": "FEDORA-2019-be98a08835",
"refsource": "FEDORA",
"tags": [
"Third Party Advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PJH3ROOFYMOATD2UEPC47P5RPBDTY77E/"
},
{
"name": "https://www.synology.com/security/advisory/Synology_SA_19_40",
"refsource": "CONFIRM",
"tags": [
"Third Party Advisory"
],
"url": "https://www.synology.com/security/advisory/Synology_SA_19_40"
},
{
"name": "openSUSE-SU-2019:2700",
"refsource": "SUSE",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00038.html"
},
{
"name": "FEDORA-2019-11dddb785b",
"refsource": "FEDORA",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WNKA4YIPV7AZR7KK3GW6L3HKGHSGJZFE/"
},
{
"name": "GLSA-202003-52",
"refsource": "GENTOO",
"tags": [
"Third Party Advisory"
],
"url": "https://security.gentoo.org/glsa/202003-52"
},
{
"name": "[debian-lts-announce] 20210529 [SECURITY] [DLA 2668-1] samba security update",
"refsource": "MLIST",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2021/05/msg00023.html"
},
{
"name": "[debian-lts-announce] 20221126 [SECURITY] [DLA 3206-1] heimdal security update",
"refsource": "MLIST",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00034.html"
},
{
"name": "https://security.netapp.com/advisory/ntap-20230216-0008/",
"refsource": "CONFIRM",
"tags": [],
"url": "https://security.netapp.com/advisory/ntap-20230216-0008/"
},
{
"name": "GLSA-202310-06",
"refsource": "GENTOO",
"tags": [],
"url": "https://security.gentoo.org/glsa/202310-06"
}
]
}
},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 6.4,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:N",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 4.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 2.5
}
},
"lastModifiedDate": "2023-10-08T09:15Z",
"publishedDate": "2019-12-10T23:15Z"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…