Vulnerabilities
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CVE Vulnerabilities

CVE-2018-14662

Improper Authorization

Published: Jan 15, 2019 | Modified: Nov 21, 2024
CVSS 3.x
5.7
MEDIUM
Source:
NVD
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS 2.x
2.7 LOW
AV:A/AC:L/Au:S/C:P/I:N/A:N
RedHat/V2
RedHat/V3
3.5 LOW
CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Ubuntu
MEDIUM
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2018-14662
CWEhttps://cwe.mitre.org/data/definitions/285.html

It was found Ceph versions before 13.2.4 that authenticated ceph users with read only permissions could steal dm-crypt encryption keys used in ceph disk encryption.

Weakness

The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.

Affected Software

Name Vendor Start Version End Version
Ceph Redhat * 13.2.4 (excluding)
Red Hat Ceph Storage 3.3 RedHat ceph-2:12.2.12-45.el7cp *
Red Hat Ceph Storage 3.3 RedHat ceph-ansible-0:3.2.24-1.el7cp *
Red Hat Ceph Storage 3.3 RedHat ceph-iscsi-config-0:2.6-19.el7cp *
Red Hat Ceph Storage 3.3 RedHat cephmetrics-0:2.0.6-1.el7cp *
Red Hat Ceph Storage 3.3 RedHat libntirpc-0:1.7.4-1.el7cp *
Red Hat Ceph Storage 3.3 RedHat nfs-ganesha-0:2.7.4-10.el7cp *
Red Hat Ceph Storage 3.3 RedHat python-crypto-0:2.6.1-16.el7ost *
Red Hat Ceph Storage 3 for Ubuntu RedHat *
Ceph Ubuntu bionic *
Ceph Ubuntu esm-infra-legacy/trusty *
Ceph Ubuntu precise/esm *
Ceph Ubuntu trusty *
Ceph Ubuntu trusty/esm *
Ceph Ubuntu upstream *
Ceph Ubuntu xenial *

Extended Description

Assuming a user with a given identity, authorization is the process of determining whether that user can access a given resource, based on the user’s privileges and any permissions or other access-control specifications that apply to the resource. When access control checks are not applied consistently - or not at all - users are able to access data or perform actions that they should not be allowed to perform. This can lead to a wide range of problems, including information exposures, denial of service, and arbitrary code execution.

Potential Mitigations

  • Divide the product into anonymous, normal, privileged, and administrative areas. Reduce the attack surface by carefully mapping roles with data and functionality. Use role-based access control (RBAC) to enforce the roles at the appropriate boundaries.
  • Note that this approach may not protect against horizontal authorization, i.e., it will not protect a user from attacking others with the same role.
  • Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
  • For example, consider using authorization frameworks such as the JAAS Authorization Framework [REF-233] and the OWASP ESAPI Access Control feature [REF-45].
  • For web applications, make sure that the access control mechanism is enforced correctly at the server side on every page. Users should not be able to access any unauthorized functionality or information by simply requesting direct access to that page.
  • One way to do this is to ensure that all pages containing sensitive information are not cached, and that all such pages restrict access to requests that are accompanied by an active and authenticated session token associated with a user who has the required permissions to access that page.

References

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