CVE-2021-4007

Rapid7 Insight Agent Privilege Escalation

HIGH
7.8
CVSS Score
Published: December 14, 2021 at 02:55 PM UTC
Updated: June 17, 2026 at 04:18 AM UTC
1 product affected across 1 vendorInsight Agent

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Severity
HIGH7.8
Exploit prediction
EPSS 0.3%

Description

Rapid7 Insight Agent, versions 3.0.1 to 3.1.2.34, suffer from a local privilege escalation due to an uncontrolled DLL search path. Specifically, when Insight Agent versions 3.0.1 to 3.1.2.34 start, the Python interpreter attempts to load python3.dll at "C:\DLLs\python3.dll," which normally is writable by locally authenticated users. Because of this, a malicious local user could use Insight Agent's startup conditions to elevate to SYSTEM privileges. This issue was fixed in Rapid7 Insight Agent 3.1.2.35. This vulnerability is a regression of CVE-2019-5629.

Affected

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

3.0.1 ≤ v < 3.0.1*3.0.1 ≤ v < 3.1.2.353.0.13.1.2.34
Affected range stops below 3.0.1*, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.1.2.35, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

x_refsource_CONFIRMRelease NotesThird Party Advisory
https://docs.rapid7.com/release-notes/insightagent/20211210/

CVSS

7.8HIGHrapid7
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-427

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