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TI-2011-04375 Aliases CVE-2011-5098GHSA-q923-fjjc-9frg

chef-server-api/app/controllers/clients.rb in Chef Server in Chef before 0.9.20, and…

Priority LOW 32CWE-264Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
Partial · Partial · Partial
Fix status
No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-264.

Summary

chef-server-api/app/controllers/clients.rb in Chef Server in Chef before 0.9.20, and 0.10.x before 0.10.6, does not require administrative privileges for creating admin clients, which allows remote authenticated users to bypass intended access restrictions by leveraging read permission for the validation key and executing a knife client create command with the --admin option.

Why it matters now

EPSS 0.01681 77th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 34

CPEVersionsRoleVendor
cpe:2.3:a:opscode:chef:*:*:*:*:*:*:*:*up to 0.9.18VulnerableOpscode
cpe:2.3:a:opscode:chef:0.5.1:*:*:*:*:*:*:*0.5.1VulnerableOpscode
cpe:2.3:a:opscode:chef:0.5.2:*:*:*:*:*:*:*0.5.2VulnerableOpscode
cpe:2.3:a:opscode:chef:0.5.4:*:*:*:*:*:*:*0.5.4VulnerableOpscode
cpe:2.3:a:opscode:chef:0.5.6:*:*:*:*:*:*:*0.5.6VulnerableOpscode
cpe:2.3:a:opscode:chef:0.6.0:*:*:*:*:*:*:*0.6.0VulnerableOpscode
cpe:2.3:a:opscode:chef:0.6.2:*:*:*:*:*:*:*0.6.2VulnerableOpscode
cpe:2.3:a:opscode:chef:0.7.2:*:*:*:*:*:*:*0.7.2VulnerableOpscode
cpe:2.3:a:opscode:chef:0.7.4:*:*:*:*:*:*:*0.7.4VulnerableOpscode
cpe:2.3:a:opscode:chef:0.7.6:*:*:*:*:*:*:*0.7.6VulnerableOpscode
  • cpe:2.3:a:opscode:chef:*:*:*:*:*:*:*:* Versions up to 0.9.18 Vulnerable ·Opscode
  • cpe:2.3:a:opscode:chef:0.5.1:*:*:*:*:*:*:* Versions 0.5.1 Vulnerable ·Opscode
  • cpe:2.3:a:opscode:chef:0.5.2:*:*:*:*:*:*:* Versions 0.5.2 Vulnerable ·Opscode
  • cpe:2.3:a:opscode:chef:0.5.4:*:*:*:*:*:*:* Versions 0.5.4 Vulnerable ·Opscode
  • cpe:2.3:a:opscode:chef:0.5.6:*:*:*:*:*:*:* Versions 0.5.6 Vulnerable ·Opscode
  • cpe:2.3:a:opscode:chef:0.6.0:*:*:*:*:*:*:* Versions 0.6.0 Vulnerable ·Opscode
  • cpe:2.3:a:opscode:chef:0.6.2:*:*:*:*:*:*:* Versions 0.6.2 Vulnerable ·Opscode
  • cpe:2.3:a:opscode:chef:0.7.2:*:*:*:*:*:*:* Versions 0.7.2 Vulnerable ·Opscode
  • cpe:2.3:a:opscode:chef:0.7.4:*:*:*:*:*:*:* Versions 0.7.4 Vulnerable ·Opscode
  • cpe:2.3:a:opscode:chef:0.7.6:*:*:*:*:*:*:* Versions 0.7.6 Vulnerable ·Opscode
Show 24 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:opscode:chef:0.7.8:*:*:*:*:*:*:*0.7.8VulnerableOpscode
cpe:2.3:a:opscode:chef:0.7.10:*:*:*:*:*:*:*0.7.10VulnerableOpscode
cpe:2.3:a:opscode:chef:0.7.12:*:*:*:*:*:*:*0.7.12VulnerableOpscode
cpe:2.3:a:opscode:chef:0.7.14:*:*:*:*:*:*:*0.7.14VulnerableOpscode
cpe:2.3:a:opscode:chef:0.8.2:*:*:*:*:*:*:*0.8.2VulnerableOpscode
cpe:2.3:a:opscode:chef:0.8.4:*:*:*:*:*:*:*0.8.4VulnerableOpscode
cpe:2.3:a:opscode:chef:0.8.6:*:*:*:*:*:*:*0.8.6VulnerableOpscode
cpe:2.3:a:opscode:chef:0.8.8:*:*:*:*:*:*:*0.8.8VulnerableOpscode
cpe:2.3:a:opscode:chef:0.8.10:*:*:*:*:*:*:*0.8.10VulnerableOpscode
cpe:2.3:a:opscode:chef:0.8.12:*:*:*:*:*:*:*0.8.12VulnerableOpscode
cpe:2.3:a:opscode:chef:0.8.14:*:*:*:*:*:*:*0.8.14VulnerableOpscode
cpe:2.3:a:opscode:chef:0.8.16:*:*:*:*:*:*:*0.8.16VulnerableOpscode
cpe:2.3:a:opscode:chef:0.9.0:*:*:*:*:*:*:*0.9.0VulnerableOpscode
cpe:2.3:a:opscode:chef:0.9.2:*:*:*:*:*:*:*0.9.2VulnerableOpscode
cpe:2.3:a:opscode:chef:0.9.4:*:*:*:*:*:*:*0.9.4VulnerableOpscode
cpe:2.3:a:opscode:chef:0.9.6:*:*:*:*:*:*:*0.9.6VulnerableOpscode
cpe:2.3:a:opscode:chef:0.9.8:*:*:*:*:*:*:*0.9.8VulnerableOpscode
cpe:2.3:a:opscode:chef:0.9.10:*:*:*:*:*:*:*0.9.10VulnerableOpscode
cpe:2.3:a:opscode:chef:0.9.12:*:*:*:*:*:*:*0.9.12VulnerableOpscode
cpe:2.3:a:opscode:chef:0.9.14:*:*:*:*:*:*:*0.9.14VulnerableOpscode
cpe:2.3:a:opscode:chef:0.9.16:*:*:*:*:*:*:*0.9.16VulnerableOpscode
cpe:2.3:a:opscode:chef:0.10.0:*:*:*:*:*:*:*0.10.0VulnerableOpscode
cpe:2.3:a:opscode:chef:0.10.2:*:*:*:*:*:*:*0.10.2VulnerableOpscode
cpe:2.3:a:opscode:chef:0.10.4:*:*:*:*:*:*:*0.10.4VulnerableOpscode
  • cpe:2.3:a:opscode:chef:0.7.8:*:*:*:*:*:*:* Versions 0.7.8 Vulnerable ·Opscode
  • cpe:2.3:a:opscode:chef:0.7.10:*:*:*:*:*:*:* Versions 0.7.10 Vulnerable ·Opscode
  • cpe:2.3:a:opscode:chef:0.7.12:*:*:*:*:*:*:* Versions 0.7.12 Vulnerable ·Opscode
  • cpe:2.3:a:opscode:chef:0.7.14:*:*:*:*:*:*:* Versions 0.7.14 Vulnerable ·Opscode
  • cpe:2.3:a:opscode:chef:0.8.2:*:*:*:*:*:*:* Versions 0.8.2 Vulnerable ·Opscode
  • cpe:2.3:a:opscode:chef:0.8.4:*:*:*:*:*:*:* Versions 0.8.4 Vulnerable ·Opscode
  • cpe:2.3:a:opscode:chef:0.8.6:*:*:*:*:*:*:* Versions 0.8.6 Vulnerable ·Opscode
  • cpe:2.3:a:opscode:chef:0.8.8:*:*:*:*:*:*:* Versions 0.8.8 Vulnerable ·Opscode
  • cpe:2.3:a:opscode:chef:0.8.10:*:*:*:*:*:*:* Versions 0.8.10 Vulnerable ·Opscode
  • cpe:2.3:a:opscode:chef:0.8.12:*:*:*:*:*:*:* Versions 0.8.12 Vulnerable ·Opscode
  • cpe:2.3:a:opscode:chef:0.8.14:*:*:*:*:*:*:* Versions 0.8.14 Vulnerable ·Opscode
  • cpe:2.3:a:opscode:chef:0.8.16:*:*:*:*:*:*:* Versions 0.8.16 Vulnerable ·Opscode
  • cpe:2.3:a:opscode:chef:0.9.0:*:*:*:*:*:*:* Versions 0.9.0 Vulnerable ·Opscode
  • cpe:2.3:a:opscode:chef:0.9.2:*:*:*:*:*:*:* Versions 0.9.2 Vulnerable ·Opscode
  • cpe:2.3:a:opscode:chef:0.9.4:*:*:*:*:*:*:* Versions 0.9.4 Vulnerable ·Opscode
  • cpe:2.3:a:opscode:chef:0.9.6:*:*:*:*:*:*:* Versions 0.9.6 Vulnerable ·Opscode
  • cpe:2.3:a:opscode:chef:0.9.8:*:*:*:*:*:*:* Versions 0.9.8 Vulnerable ·Opscode
  • cpe:2.3:a:opscode:chef:0.9.10:*:*:*:*:*:*:* Versions 0.9.10 Vulnerable ·Opscode
  • cpe:2.3:a:opscode:chef:0.9.12:*:*:*:*:*:*:* Versions 0.9.12 Vulnerable ·Opscode
  • cpe:2.3:a:opscode:chef:0.9.14:*:*:*:*:*:*:* Versions 0.9.14 Vulnerable ·Opscode
  • cpe:2.3:a:opscode:chef:0.9.16:*:*:*:*:*:*:* Versions 0.9.16 Vulnerable ·Opscode
  • cpe:2.3:a:opscode:chef:0.10.0:*:*:*:*:*:*:* Versions 0.10.0 Vulnerable ·Opscode
  • cpe:2.3:a:opscode:chef:0.10.2:*:*:*:*:*:*:* Versions 0.10.2 Vulnerable ·Opscode
  • cpe:2.3:a:opscode:chef:0.10.4:*:*:*:*:*:*:* Versions 0.10.4 Vulnerable ·Opscode

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2011-5098
  2. 2026-10-03 Alias added: GHSA-q923-fjjc-9frg

References

Exploit 1

Other 1

  • TI-2010-04840 chef-server-api/app/controllers/users.rb in the API in Chef before 0.9.0 does not require… CVSS 2.0MEDIUM 6.5
  • TI-2011-04374 chef-server-api/app/controllers/cookbooks.rb in Chef Server in Chef before 0.9.18, and… CVSS 2.0MEDIUM 5.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences