Auth bypass in Ceph
CVE-2018-1129
A flaw was found in the way signature calculation was handled by cephx authentication protocol. An attacker having access to ceph cluster network who is able to alter the message payload was able to bypass signature checks done by cephx protocol. Ceph branches master, mimic, luminous and jewel are believed to be vulnerable.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.019 (79.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 79.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: 0.000
Affected products
- Ceph — versions 10.2.0, 10.2.1, 10.2.2
- Red Hat, Inc. Ceph — versions all versions in branches master, mimic, luminous and jewel
- Debian Linux — versions 8.0, 9.0
- openSUSE Leap — versions 15.0
- Red Hat Ceph Storage — versions 1.3, 3
- Red Hat Ceph Storage Mon — versions 2, 3
- Red Hat Ceph Storage Osd — versions 2, 3
- Red Hat Enterprise Linux — versions 7.0
- Red Hat Enterprise Linux Desktop — versions 7.0
- Red Hat Enterprise Linux Server — versions 7.0
Weakness classification (CWE)
References
- access.redhat.com/errata/RHSA-2018:2261 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:2177 (vendor-advisory, Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- access.redhat.com/errata/RHSA-2018:2179 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:2274 (vendor-advisory, Third Party Advisory)
- tracker.ceph.com/issues/24837 (Issue Tracking, Vendor Advisory)
- github.com/ceph/ceph/commit/8f396cf35a3826044b089141667a196454c0a587 (Patch, Third Party Advisory)
- www.debian.org/security/2018/dsa-4339 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2019/03/msg00017.html (mailing-list, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2019-04/msg00100.html (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-1129?
- CVE-2018-1129 is a medium-severity vulnerability in Ceph, classified under Improper Access Control. CVSS score: 6.5/10. Published 2018-07-10.
- How severe is CVE-2018-1129?
- Medium severity. CVSS v3 base score is 6.5 out of 10.