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CVE

CVE-2021-31818

Affected versions of Octopus Server are prone to an authenticated SQL injection vulnerability in the Events REST API bec

Affected versions of Octopus Server are prone to an authenticated SQL injection vulnerability in the Events REST API because user supplied data in the API request isn’t parameterised correctly. Exploiting this vulnerability could allow unauthorised access to database tables.

MEDIUM · CVSS 4.3 EPSS 0.00232
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules5 YARA rules0
⬡

Weakness Classification

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
▤

Affected Products & Versions

4
octopus server>= 2018.9.17 and < 2018.13.0
octopus server>= 2020.0.0 and < 2020.6.0
octopus server>= 2020.6.0 and < 2020.6.5146
octopus server>= 2021.1.0 and < 2021.1.7316
◈

Sigma Hunt Rules

5
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighPotential Server Side Template Injection In Velocity
producthighRemote Server Service Abuse for Lateral Movement
producthighRemote Server Service Abuse
producthighSuspicious Child Process Of SQL Server
producthighSuspicious Process By Web Server Process
▣

Scoring & Timeline

4.3
MEDIUM · CVSS v3.1 · security@octopus.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD17 Jun 2021 · 02:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://advisories.octopus.com/adv/2021-04---SQL-Injection-in-the-Events-REST-API-%28CVE-2021-31818%29.2013233248.html
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