CVE-2015-4053 — ceph-deploy
Fix: ceph/ceph-deploy#300CVE-2015-4053 is a Information Exposure vulnerability in ceph-deploy. A fix is available for ceph-deploy — see the affected versions and patch details below.
ceph-deploy uses world-readable permissions on client.admin key
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
Real-World Exposure
ceph-deployReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.
Description
The admin command in ceph-deploy before 1.5.25 uses world-readable permissions for /etc/ceph/ceph.client.admin.keyring, which allows local users to obtain sensitive information by reading the file.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐍PyPI | ceph-deploy | all versions | 1.5.25pip install --upgrade 'ceph-deploy==1.5.25' |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for ceph-deploy, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update ceph-deploy to 1.5.25 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2015-4053 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like CVE-2015-4053 can be triaged on real exposure rather than presence alone.
Tailored to CVE-2015-4053. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Fixing This On Your OS
If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.
| Product | Fixed in | Advisory |
|---|---|---|
| Red Hat Ceph Storage 1.2 for CentOS | see advisory | RHSA-2015:1631 |
| Red Hat Ceph Storage 1.2 for RHEL 6 | ceph-deploy-0:1.5.22-0.4.rc1.el6cp | RHSA-2015:1092 |
| Red Hat Ceph Storage 1.2 for Ubuntu | see advisory | RHSA-2015:1579 |
Frequently Asked Questions
Is CVE-2015-4053 in your dependencies?
O3 Security finds CVE-2015-4053 across PyPI dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.