Home/CVE/On Windows, The IsLocal function does not correctly detect reserved device names in some cases. Reserved names followed
CVE

CVE-2023-45284

On Windows, The IsLocal function does not correctly detect reserved device names in some cases. Reserved names followed

On Windows, The IsLocal function does not correctly detect reserved device names in some cases. Reserved names followed by spaces, such as "COM1 ", and reserved names "COM" and "LPT" followed by superscript 1, 2, or 3, are incorrectly reported as local. With fix, IsLocal now correctly reports these names as non-local.

MEDIUM · CVSS 5.3 EPSS 0.00035
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
Sigma rules7 YARA rules0
▤

Affected Products & Versions

2
golang go< 1.20.11
golang go>= 1.21.0-0 and < 1.21.4
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Go stdlib fixed in 1.20.11, 1.21.4
◈

Sigma Hunt Rules

7
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.
productcriticalHackTool - Windows Credential Editor (WCE) Execution
productcriticalWindows Credential Editor Registry
producthighOpenCanary - MSSQL Login Attempt Via Windows Authentication
producthighWindows LAPS Credential Dump From Entra ID
producthighTamper Windows Defender - PSClassic
producthighTamper Windows Defender Remove-MpPreference - ScriptBlockLogging
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · security@golang.org
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 NVD09 Nov 2023 · 05:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

13
msrcCVE-2023-45284
suse-csafopenSUSE-SU-2024:14076-1
suse-csafopenSUSE-SU-2024:13491-1
suse-csafopenSUSE-SU-2024:13492-1
suse-csafopenSUSE-SU-2024:13506-1
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://go.dev/cl/540277Issue TrackingVendor Advisory
https://go.dev/issue/63713Issue TrackingVendor Advisory
https://groups.google.com/g/golang-announce/c/4tU8LZfBFkYIssue TrackingMailing ListVendor Advisory
https://pkg.go.dev/vuln/GO-2023-2186Issue TrackingVendor Advisory
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