Security readout for executives and security teams
Plain-English summary
CVE-2017-20186 is a low-severity denial-of-service issue in the unsupported ckSurf plugin for CS:GO servers. It affects versions 1.19.0 through 1.19.2 and can reduce availability, not expose or alter data. The practical concern is disruption to game servers still running the old plugin.
Executive priority
Treat as a targeted maintenance item, not an emergency. Prioritize remediation for public or business-critical game servers still running the affected unsupported plugin versions.
Technical view
The issue is in SpecListMenuDead in csgo/addons/sourcemod/scripting/ckSurf/misc.sp, within the Spectator List Name Handler. Manipulating cleanName can cause denial of service. CVSS v3.1 is 3.5 low: AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L. CWE-404 is listed.
Likely exposure
Exposure appears limited to Counter-Strike: Global Offensive servers running nikooo777 ckSurf versions 1.19.0, 1.19.1, or 1.19.2. General enterprise systems are unlikely to be affected unless they operate this plugin.
Exploitation context
The provided sources do not show known active exploitation, and the CVE is not marked KEV. The CVSS vector indicates adjacent-network access and low privileges are required, with impact limited to availability.
Researcher notes
The source bundle identifies VDB-238156, affected function and file path, affected versions, CVSS, CWE, patch commit, and fixed release. It does not provide evidence of exploitation in the wild or broader product impact.
Mitigation direction
- Upgrade ckSurf to version 1.21.0 or later.
- Apply the referenced patch commit if maintaining a fork.
- Remove or disable unsupported ckSurf versions if upgrade is not possible.
- Check project and AlliedModders guidance before operational changes.
Validation and detection
- Inventory CS:GO SourceMod servers for ckSurf installations.
- Confirm ckSurf version is not 1.19.0, 1.19.1, or 1.19.2.
- Review plugin files for the patched SpecListMenuDead behavior.
- Monitor affected servers for unexplained availability disruptions.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-404: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2017-20186 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Low
- CVSS
- 3.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L2.11.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
3.5LowVector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source materials
- CVE List V5 sourceCVE List V5
- VDB-238156 | nikooo777 ckSurf Spectator List Name misc.sp SpecListMenuDead denial of serviceCVE reference · vdb-entry, technical-description
- VDB-238156 | CTI Indicators (IOB, IOC, IOA)CVE reference · signature, permissions-required
- https://forums.alliedmods.net/showthread.php?t=297179CVE reference · related
- https://github.com/nikooo777/ckSurf/commit/fd6318d99083a06363091441a0614bd2f21068e6CVE reference · patch
- https://github.com/nikooo777/ckSurf/releases/tag/1.21.0CVE reference · patch
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Resource Shutdown or Release
Improper Resource Shutdown or Release represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.