Vulnerability · Published Dec 14, 2021 · Assigned by rapid7

CVE-2021-4007Rapid7 Insight Agent Privilege Escalation

High 7.8

In plain English

A high-severity uncontrolled search path in Insight Agent from Rapid7. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities).

Severity (CVSS 3.1)7.8High

Exploit odds (30 days)0.3%top 73.8% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official 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 products (as reported)

Vendor	Product	Versions
Rapid7	Insight Agent	3.0.1 – before 3.0.1*3.1.2.34 – through 3.1.2.34

Weakness: CWE-427 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

https://docs.rapid7.com/release-notes/insightagent/20211210/ x_refsource_CONFIRM
https://cve.mitre.org/cgi-bin/cvename.cgi?name=2019-5629 x_refsource_MISC