Vulnerability Report

CVE-2018-10896

Title: Canonical Cloud-Init

Other

Proof Of Concept

No public PoC currently indexed for CVE-2018-10896.

CWE Category CWE-321
Published Date Aug 01, 2018
Modified Date Nov 21, 2024
Exploit Status Not Found
Score 7.1 CVSS v3.1
Exploit Probability (EPSS)
0.35%

Vulnerability Summary

CVE-2018-10896: 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.

Impacted Vendors

C
canonical 1

Reference Links

https://bugs.launchpad.net/cloud-init/+bug/1781094 https://bugzilla.redhat.com/show_bug.cgi?id=1574338 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10896 https://bugs.launchpad.net/cloud-init/+bug/1781094 https://bugzilla.redhat.com/show_bug.cgi?id=1574338 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10896
CVSS v3.1
Source Entity [email protected]
Severity HIGH
7.1
Attack Vector
LOCAL
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS v3.0
Source Entity [email protected]
Severity MEDIUM
4.6
Attack Vector
LOCAL
Complexity
LOW
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
CHANGED
RAW VECTOR CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS v2.0
Source Entity [email protected]
Severity LOW
3.6
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:L/AC:L/Au:N/C:P/I:P/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2018-10896 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector LOCAL
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Affected Stack

No specific products linked.