Insight Agent: Unquoted Search Path or Element
CVE-2022-0237 is a high-severity unquoted search path or element vulnerability in Insight Agent from Rapid7, with a CVSS 3.1 base score of 7.8 out of 10. It can be exploited with local access to the system by an attacker with a low-privileged account, without any action from a user. Affected Insight Agent versions: 3.1.2.38 and earlier. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.48% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of Insight Agent you run against the affected versions below, and install the vendor's latest release.
- Read the advisory on docs.rapid7.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Rapid7 | Insight Agent | 3.1.2.38 and earlier | Not stated |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- LocalThe attacker needs local access or must trick a user into running something.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 4.0 | Medium | CNA (rapid7.com) |
| CVSS 3.1 | 7.8 | High | NVD |
| CVSS 2.0 | 7.2 | High | NVD |
Official description
Rapid7 Insight Agent versions 3.1.2.38 and earlier suffer from a privilege escalation vulnerability, whereby an attacker can hijack the flow of execution due to an unquoted argument to the runas.exe command used by the ir_agent.exe component, resulting in elevated rights and persistent access to the machine. This issue was fixed in Rapid7 Insight Agent version 3.1.3.80.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Unquoted Search Path or Element
The product uses a search path that contains an unquoted element, in which the element contains whitespace or other separators. This can cause the product to access resources in a parent path.
How developers prevent this class of flaw
- Properly quote the full search path before executing a program on the system.
- Inputs should be decoded and canonicalized to the application's current internal representation before being validated (CWE-180). Make sure that the application does not decode the same input twice (CWE-174). Such errors could be used to bypass allowlist validation schemes by introducing dangerous inputs after they have been checked.
More Unquoted Search Path or Element vulnerabilities (CWE-428)
Timeline
- CVE record published.
- Record last changed materially (score, affected products, status or references).
References
Advisories
- docs.rapid7.com/release-notes/insightagent/20220225/Release Notes
Technical write-ups (may include proof of concept)
- gist.github.com/n2dez/05d43c616f2b403e84ee55d4d7aab251Exploit, Third Party Advisory
Other vulnerabilities in Insight Agent
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
- 7.2 High severity
- 7.5 High severity
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