Scalefusion: Protection Mechanism Failure
CVE-2023-51748 is a high-severity protection mechanism failure vulnerability in Scalefusion, with a CVSS 3.1 base score of 8.8 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 Scalefusion versions: 10.5.2. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.31% 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 Scalefusion you run against the affected versions below, and install the vendor's latest release.
- Read the advisory on help.scalefusion.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Scalefusion | Scalefusion | 10.5.2 | Not stated |
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
- 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
- ChangedThe attack can reach beyond the vulnerable component into other systems.
- 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:C/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 8.8 | High | NVD |
| CVSS 3.1 | 8.8 | High | CISA (ADP) |
Official description
ScaleFusion 10.5.2 does not properly limit users to the Edge application because Ctrl-O and Ctrl-S can be used. This is fixed in 10.5.7 by preventing the launching of the file explorer in Agent-based Multi-App and Single App Kiosk mode.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Protection Mechanism Failure
The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.
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
Technical write-ups (may include proof of concept)
- medium.com/nestedif/vulnerability-disclosure-browser-mode-kiosk-bypass-scalefusion-832f5a18ebb6Exploit, Third Party Advisory
- medium.com/nestedif/vulnerability-disclosure-kiosk-mode-bypass-scalefusion-4752dfa2dc59Exploit, Third Party Advisory
Other vulnerabilities in Scalefusion
- 8.8 High severity
Recent Protection Mechanism Failure vulnerabilities
- 7.7 High severity
- 9.8 Critical severity
- 8.8 High severity
- 9.8 Critical severity
- 8.8 High severity
- 7.8 High severity
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