High severity · published Dec 14, 2021
CVE-2021-4007
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
7.8
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 26% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
IA
Insight Agent · Rapid7
3.0.1 before 3.1.2.35 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-4007
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-4007
Third Party Advisory
https://cve.mitre.org/cgi-bin/cvename.cgi?name=2019-5629
Release Notes
https://docs.rapid7.com/release-notes/insightagent/20211210/
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