Overview
- Description
- A flaw was found in samba's Heimdal KDC implementation, versions 4.8.x up to, excluding 4.8.12, 4.9.x up to, excluding 4.9.8 and 4.10.x up to, excluding 4.10.3, when used in AD DC mode. A man in the middle attacker could use this flaw to intercept the request to the KDC and replace the user name (principal) in the request with any desired user name (principal) that exists in the KDC effectively obtaining a ticket for that principal.
- Source
- secalert@redhat.com
- NVD status
- Modified
Risk scores
CVSS 3.0
- Type
- Primary
- Base score
- 7.5
- Impact score
- 5.9
- Exploitability score
- 1.6
- Vector string
- CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- Severity
- HIGH
CVSS 2.0
- Type
- Primary
- Base score
- 6
- Impact score
- 6.4
- Exploitability score
- 6.8
- Vector string
- AV:N/AC:M/Au:S/C:P/I:P/A:P
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "04E9BEFE-FF93-4C6F-B76D-6B8CFE1E5BDD",
"versionEndExcluding": "4.8.12",
"versionStartIncluding": "4.8.0"
},
{
"criteria": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "35DB3E08-0131-4AF2-AB27-D51B401D7D45",
"versionEndExcluding": "4.9.8",
"versionStartIncluding": "4.9.0"
},
{
"criteria": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "895BEC8B-ADBC-4575-B07E-3149A613C4ED",
"versionEndExcluding": "4.10.3",
"versionStartIncluding": "4.10.0"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:heimdal_project:heimdal:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "683A4E25-64AF-46AC-BAA8-E56BD9C9840F",
"versionEndIncluding": "7.5.0",
"versionStartIncluding": "0.8"
}
],
"operator": "OR"
}
]
}
]