CVE-2018-10896
CVSS V2 Low 3.6
CVSS V3 High 7.1
Description
The default cloud-init configuration, in cloud-init 0.6.2 and newer, included "ssh_deletekeys: 0", disabling cloud-init's deletion of ssh host keys. In some environments, this could lead to instances created by cloning a golden master or template system, sharing ssh host keys, and being able to impersonate one another or conduct man-in-the-middle attacks.
Overview
- CVE ID
- CVE-2018-10896
- Assigner
- secalert@redhat.com
- Vulnerability Status
- Modified
- Published Version
- 2018-08-01T17:29:00
- Last Modified Date
- 2023-02-13T04:51:37
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:canonical:cloud-init:*:*:*:*:*:*:*:* | 1 | OR | 0.6.2 | 18.4 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:N/C:P/I:P/A:N
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- NONE
- Base Score
- 3.6
- Severity
- LOW
- Exploitability Score
- 3.9
- Impact Score
- 4.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 7.1
- Base Severity
- HIGH
- Exploitability Score
- 1.8
- Impact Score
- 5.2
References
| Reference URL | Reference Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2020:3050 | |
| https://access.redhat.com/errata/RHSA-2020:3644 | |
| https://access.redhat.com/errata/RHSA-2020:3898 | |
| https://access.redhat.com/security/cve/CVE-2018-10896 | |
| https://bugs.launchpad.net/cloud-init/+bug/1781094 | Patch Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=1574338 | Issue Tracking Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=1598831 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10896 | Issue Tracking Patch Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2018-10896 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-10896 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:21:37 | Added to TrackCVE | |||
| 2022-12-03 10:49:07 | 2018-08-01T17:29Z | 2018-08-01T17:29:00 | CVE Published Date | updated |
| 2022-12-03 10:49:07 | 2020-10-29T20:19:36 | CVE Modified Date | updated | |
| 2022-12-03 10:49:07 | Analyzed | Vulnerability Status | updated | |
| 2023-02-02 17:07:55 | 2023-02-02T16:18:23 | CVE Modified Date | updated | |
| 2023-02-02 17:07:55 | Analyzed | Modified | Vulnerability Status | updated |
| 2023-02-02 17:07:55 | The default cloud-init configuration, in cloud-init 0.6.2 and newer, included "ssh_deletekeys: 0", disabling cloud-init's deletion of ssh host keys. In some environments, this could lead to instances created by cloning a golden master or template system, sharing ssh host keys, and being able to impersonate one another or conduct man-in-the-middle attacks. | The default cloud-init configuration included "ssh_deletekeys: 0", disabling cloud-init's deletion of ssh host keys. In some environments, this could lead to instances created by cloning a golden master or template system, sharing ssh host keys, and being able to impersonate one another or conduct man-in-the-middle attacks. | Description | updated |
| 2023-02-02 17:08:01 | References | updated | ||
| 2023-02-13 05:10:08 | 2023-02-13T04:51:37 | CVE Modified Date | updated | |
| 2023-02-13 05:10:10 | Weakness Enumeration | update | ||
| 2023-02-13 05:10:10 | The default cloud-init configuration included "ssh_deletekeys: 0", disabling cloud-init's deletion of ssh host keys. In some environments, this could lead to instances created by cloning a golden master or template system, sharing ssh host keys, and being able to impersonate one another or conduct man-in-the-middle attacks. | The default cloud-init configuration, in cloud-init 0.6.2 and newer, included "ssh_deletekeys: 0", disabling cloud-init's deletion of ssh host keys. In some environments, this could lead to instances created by cloning a golden master or template system, sharing ssh host keys, and being able to impersonate one another or conduct man-in-the-middle attacks. | Description | updated |