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CVE Record

CVE-2023-37265: Incorrect identification of source IP addresses in CasaOS

CasaOS is an open-source Personal Cloud system. Due to a lack of IP address verification an unauthenticated attackers can execute arbitrary commands as `root` on CasaOS instances. The problem was addressed by improving the detection of client IP addresses in `391dd7f`. This patch is part of CasaOS 0.4.4. Users should upgrade to CasaOS 0.4.4. If they can't, they should temporarily restrict access to CasaOS to untrusted users, for instance by not exposing it publicly.

CriticalCVSS 9.8Not KEV-listedUpdated
Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

CasaOS before 0.4.4 can trust the wrong source IP information. An unauthenticated network attacker may be able to run arbitrary commands as root, which means full control of the affected host. Publicly exposed CasaOS instances are the highest concern.

Executive priority

Prioritize immediate remediation for any exposed CasaOS instance. This is a critical unauthenticated remote root execution issue, so delay can translate into full host compromise. If patching cannot happen now, isolate the service from untrusted access.

Technical view

CVE-2023-37265 affects IceWhaleTech CasaOS-Gateway versions before 0.4.4. The issue is described as lack of IP address verification, mapped to CWE-306, and carries CVSS 9.8. The fix improved client IP detection in commit 391dd7f and shipped in CasaOS 0.4.4.

Likely exposure

Likely exposure is CasaOS personal cloud deployments running CasaOS-Gateway below 0.4.4, especially instances reachable from the internet. Internal-only deployments still matter if untrusted users or devices can reach CasaOS.

Exploitation context

The provided sources support unauthenticated remote root command execution potential. The CVE is not listed as KEV, and the supplied bundle does not confirm active exploitation in the wild. Risk remains high because exploitation needs network access and no authentication.

Researcher notes

Focus validation on version, network reachability, and whether the client IP detection fix is present. Do not assume active exploitation from the provided evidence. The vendor-named remediation is upgrade to CasaOS 0.4.4; other mitigations are exposure reduction only.

Mitigation direction

  • Upgrade CasaOS or CasaOS-Gateway to version 0.4.4 or later.
  • If immediate upgrade is impossible, remove public exposure to CasaOS.
  • Restrict CasaOS access to trusted networks and trusted users only.
  • Review vendor advisory and release guidance before restoring external access.
  • Monitor affected hosts for unexpected administrative changes or command execution indicators.

Validation and detection

  • Inventory CasaOS deployments and identify CasaOS-Gateway versions below 0.4.4.
  • Confirm whether CasaOS is reachable from the internet or untrusted networks.
  • Verify CasaOS 0.4.4 or the 391dd7f fix is installed.
  • Review firewall, proxy, and access-control rules protecting CasaOS.
  • Check logs for unusual access patterns before and after remediation.
Prepared
Confidence
high
Sources
5

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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 · medium confidence lookup

CWE-306: Credential and account abuse lookup

Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. 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 lookup
cve · low confidence lookup

CVE-2023-37265 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Critical
CVSS
9.8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Official CVE source material

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.

1CVSS vectors
0Timeline events
0ADP providers
4Source links

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
9.8CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

9.8Critical
CVSS 3.1 vector shape for CVE-2023-37265Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
IceWhaleTechCasaOS-Gateway< 0.4.4Listed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-306 · source CWE mapping

Missing Authentication for Critical Function

Missing Authentication for Critical Function represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.