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CVE Record

CVE-2017-18362: ConnectWise ManagedITSync integration through 2017 for Kaseya VSA is vulnerable to unauthenticated remote c...

ConnectWise ManagedITSync integration through 2017 for Kaseya VSA is vulnerable to unauthenticated remote commands that allow full direct access to the Kaseya VSA database. In February 2019, attackers have actively exploited this in the wild to download and execute ransomware payloads on all endpoints managed by the VSA server. If the ManagedIT.asmx page is available via the Kaseya VSA web interface, anyone with access to the page is able to run arbitrary SQL queries, both read and write, without authentication.

CriticalCVSS 9.8Known exploitedUpdated
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Glexia's TakeSource changedcritical

Security readout for executives and security teams

Plain-English summary

If the vulnerable ManagedIT.asmx page is accessible, an unauthenticated attacker can read or change the Kaseya VSA database. Attackers exploited this weakness in February 2019 to distribute ransomware across endpoints managed by compromised VSA servers, creating potentially organization-wide impact.

Executive priority

Treat identification as an emergency priority because one exposed management server could enable ransomware deployment across its managed estate. Immediately determine whether the integration and page exist; if exposed, contain access, involve incident response, and follow current vendor remediation guidance.

Technical view

CVE-2017-18362 is a CWE-89 flaw in the ConnectWise ManagedITSync integration through 2017 for Kaseya VSA. The exposed ManagedIT.asmx interface accepts arbitrary read and write SQL queries without authentication. It has CVSS 3.1 score 9.8 and can compromise database confidentiality, integrity, and availability.

Likely exposure

Potentially exposed organizations use Kaseya VSA with the ConnectWise ManagedITSync integration through 2017 and make ManagedIT.asmx reachable through the VSA web interface. Internet accessibility materially increases risk. The supplied sources do not provide a more precise affected-version inventory.

Exploitation context

CISA lists this CVE in its Known Exploited Vulnerabilities catalog. The CVE description reports exploitation in February 2019 to download and execute ransomware on VSA-managed endpoints. The supplied evidence establishes historical real-world exploitation, but not whether a campaign remains active in 2026.

Researcher notes

The source bundle clearly identifies unauthenticated arbitrary SQL access and historical ransomware exploitation. However, it does not enumerate exact product builds, name a patch, or provide a confirmed permanent mitigation. Avoid assuming that access restriction alone resolves the underlying flaw.

Mitigation direction

  • Identify and isolate Kaseya VSA servers exposing ManagedIT.asmx, particularly those reachable from the internet.
  • Block untrusted access to ManagedIT.asmx as temporary containment while confirming supported remediation.
  • Consult current Kaseya and ConnectWise guidance for the appropriate remediation for the installed integration.
  • Investigate potentially exposed servers and managed endpoints for database compromise and unauthorized software deployment.

Validation and detection

  • Inventory VSA servers and determine whether ConnectWise ManagedITSync through 2017 is installed.
  • Confirm through configuration and access testing whether ManagedIT.asmx is reachable without authentication.
  • Review web, database, administrative, and deployment records for unexpected queries, changes, or endpoint actions.
  • After remediation, verify the page is unavailable to unauthorized users and validate against current vendor guidance.
Prepared
Confidence
medium
Sources
4

Public sources used

The source record changed after analysis: Material source record changed after analysis.

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-89: Database access and collection lookup

Injection into data stores can inform collection, data access, and exfiltration detection reviews. 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.

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description · low confidence lookup

Database behavior lookup

The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2017-18362 mapping review

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

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Vulnerability profileCVE Program record
Severity
Critical
CVSS
9.8 (3.1)
Known Exploited
Yes
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
5Timeline events
2ADP providers
4Source links

CISA KEV status

Status
Known exploited
Source
CISA-ADP
Date added
KEV reference

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: activeAutomatable: yesTechnical Impact: total

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:H3.95.9CISA-ADP

Vulnerability scoring details

Base CVSS 3.1 score

9.8Critical
CVSS 3.1 vector shape for CVE-2017-18362Attack 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

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. Added to KEVCISA-ADP

    CISA Known Exploited Vulnerabilities metadata lists this CVE as known exploited.

  4. ADP timelineCISA-ADP

    CVE-2017-18362 added to CISA KEV

  5. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CVECVE Program Container
CISA-ADPCISA ADP Vulnrichment
cvssV3_1other:ssvcother:kev
  • 2022-05-24T00:00:00.000Z: CVE-2017-18362 added to CISA KEV

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

CWE-89

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