CVE-2015-6922

CRITICAL

9.8

CVSS Score

Published: February 17, 2020 at 06:00 PM UTC

Updated: June 17, 2026 at 12:31 AM UTC

1 product affected across 1 vendorVirtual System Administrator

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Severity

CRITICAL9.8

Exploit prediction

EPSS 82%

Description

Kaseya Virtual System Administrator (VSA) 7.x before 7.0.0.33, 8.x before 8.0.0.23, 9.0 before 9.0.0.19, and 9.1 before 9.1.0.9 does not properly require authentication, which allows remote attackers to bypass authentication and (1) add an administrative account via crafted request to LocalAuth/setAccount.aspx or (2) write to and execute arbitrary files via a full pathname in the PathData parameter to ConfigTab/uploader.aspx.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Virtual System Administrator · Kaseya

95%

7.0.0.0 ≤ v < 7.0.0.338.0.0.0 ≤ v < 8.0.0.239.0.0.0 ≤ v < 9.0.0.199.1.0.0 ≤ v < 9.1.0.9

Affected range stops below 7.0.0.33, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.0.0.23, so it looks safe — our inference, not a vendor statement

Affected range stops below 9.0.0.19, so it looks safe — our inference, not a vendor statement

Affected range stops below 9.1.0.9, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://helpdesk.kaseya.com/entries/96164487--Kaseya-Security-Advisory

References (5)

x_refsource_MISCExploitThird Party AdvisoryVDB Entry

Source: [email protected]

http://packetstormsecurity.com/files/133782/Kaseya-Virtual-System-Administrator-Code-Execution-Privilege-Escalation.html

x_refsource_MISCThird Party AdvisoryVDB Entry

Source: [email protected]

http://www.zerodayinitiative.com/advisories/ZDI-15-448

x_refsource_MISCThird Party AdvisoryVDB Entry

Source: [email protected]

http://www.zerodayinitiative.com/advisories/ZDI-15-449

x_refsource_MISCBroken LinkVendor Advisory

Source: [email protected]

https://helpdesk.kaseya.com/entries/96164487--Kaseya-Security-Advisory

x_refsource_MISCExploitThird Party AdvisoryVDB Entry

Source: [email protected]

https://www.exploit-db.com/exploits/38351/

CVSS

9.8CRITICAL[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-287

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