Insight: Incorrect Permission Assignment for Critical Resource
CVE-2023-28346 is a high-severity incorrect permission assignment for critical resource vulnerability in Insight from Faronics, with a CVSS 3.1 base score of 7.3 out of 10. It can be exploited from the same local network by an attacker with a low-privileged account, without any action from a user. Affected Insight versions: 10.0.19045. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.88% chance of exploitation within 30 days, higher than 60% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of Insight you run against the affected versions below, and install the vendor's latest release.
Affected products and versions
Version data comes from NVD's product matching. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- AdjacentThe attacker must be on the same local network segment.
- 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
- NoneAvailability is not affected.
Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 7.3 | High | NVD |
| CVSS 3.1 | 7.3 | High | CISA (ADP) |
Official description
An issue was discovered in Faronics Insight 10.0.19045 on Windows. It is possible for a remote attacker to communicate with the private API endpoints exposed at /login, /consoleSettings, /console, etc. despite Virtual Host Routing being used to block this access. Remote attackers can interact with private pages on the web server, enabling them to perform privileged actions such as logging into the console and changing console settings if they have valid credentials.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Incorrect Permission Assignment for Critical Resource
The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.
How developers prevent this class of flaw
- When using a critical resource such as a configuration file, check to see if the resource has insecure permissions (such as being modifiable by any regular user), and generate an error or even exit the software if there is a possibility that the resource could have been modified by an unauthorized party.
- Divide the software into anonymous, normal, privileged, and administrative areas. Reduce the attack surface by carefully defining distinct user groups, privileges, and/or roles. Map these against data, functionality, and the related resources. Then set the permissions accordingly. This will allow you to maintain more fine-grained control over your resources.
- During program startup, explicitly set the default permissions or umask to the most restrictive setting possible. Also set the appropriate permissions during program installation. This will prevent you from inheriting insecure permissions from any user who installs or runs the program.
More Incorrect Permission Assignment for Critical Resource vulnerabilities (CWE-732)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: poc, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Patches and release notes
- research.nccgroup.com/2023/05/30/technical-advisory-multiple-vulnerabilities-in-faronics-insight/Exploit, Mitigation, Release Notes, Third Party Advisory
Third-party and government advisories
- research.nccgroup.com/?research=Technical%20advisoriesThird Party Advisory
Other vulnerabilities in Insight
- 8.8 High severity
- 7.4 High severity
- 8.8 High severity
- 7.4 High severity
- 9.6 Critical severity
- 7.1 High severity
Recent Incorrect Permission Assignment for Critical Resource vulnerabilities
- 7.5 High severity
- 7.5 High severity
- 7.8 High severity
- 8.8 High severity
- 8.8 High severity
- 7.8 High severity
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