Security Digest · Vulnerability record
CVE-2024-47533: cobbler allows anyone to connect to cobbler XML-RPC server with known password and make changes
Cobbler, a Linux installation server that allows for rapid setup of network installation environments, has an improper authentication vulnerability starting in version 3.0.0 and prior to versions 3.2.3 and 3.3.7.
CVSS 9.8 Critical EPSS 4.0% · p90
Should you act?
Critical and remotely reachable
No known exploitation yet, but it is network-reachable without credentials. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.
- Not in CISA KEV, but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
- EPSS 4.0%, percentile 90: FIRST’s model estimates a 4.0% chance of exploitation activity in the next 30 days, higher than 90% of all scored CVEs (elevated). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes
cobbler(PyPI) >= 3.3.0, < 3.3.7, fixed in 3.3.7;cobbler(PyPI) >= 3.0.0, < 3.2.3, fixed in 3.2.3. Check your lockfile, including transitive dependencies.
What it is
Cobbler, a Linux installation server that allows for rapid setup of network installation environments, has an improper authentication vulnerability starting in version 3.0.0 and prior to versions 3.2.3 and 3.3.7. utils.getsharedsecret() always returns -1, which allows anyone to connect to cobbler XML-RPC as user '' password -1 and make any changes. This gives anyone with network access to a cobbler server full control of the server. Versions 3.2.3 and 3.3.7 fix the issue.
From the GitHub advisory
Summary
utils.getsharedsecret() always returns -1 - allows anyone to connect to cobbler XML-RPC as user '' password -1 and make any changes.
Details utils.py getsharedsecret:
Always returns -1 because of the following exception:
This appears to have been introduced by commit 32c5cada013dc8daa7320a8eda9932c2814742b0 and so affects versions 3.0.0+.
Weakness type: CWE-287.
Product: cobbler (PyPI) · Assigned by: GitHub_M · Published: 2024-11-18
Affected and fixed versions
| Ecosystem | Package | Vulnerable | First fixed |
|---|---|---|---|
| PyPI | cobbler | >= 3.3.0, < 3.3.7 | 3.3.7 |
| PyPI | cobbler | >= 3.0.0, < 3.2.3 | 3.2.3 |
| Vendor | Product | Affected versions (per CVE record) |
|---|---|---|
| cobbler | cobbler | >= 3.0.0, < 3.2.3, >= 3.3.0, < 3.3.7 |
Severity scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_M | 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| GitHub | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- Attack vector: network (remotely reachable)
- Attack complexity: low
- Privileges required: none (no login)
- User interaction: none
- Scope: unchanged
CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.
Exploitation and urgency
- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc, automatable yes, technical impact total.
- FIRST EPSS (model of 2026-10-21): 4.00% probability of exploitation activity in the next 30 days; percentile 90.
Timeline
- — CVE record last updated
- — CVE record published by GitHub_M
- — GitHub-reviewed advisory GHSA-m26c-fcgh-cp6h published (critical)
Sources and references
Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.
Vulnerability records
- GitHub Advisory GHSA-m26c-fcgh-cp6h github.com
- CVE.org record CVE-2024-47533 cve.org
- NVD entry CVE-2024-47533 nvd.nist.gov
Other references from the CVE record and advisory
- github.com github.com
- github.com github.com
- github.com github.com