FortiProxy: Improper Restriction of Communication Channel to Intended Endpoints
CVE-2024-26013 is a high-severity improper restriction of communication channel to intended endpoints vulnerability in FortiProxy from Fortinet, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, but only if a user takes part, for example by opening a link or file. Affected FortiProxy versions: 7.4.0 through 7.4.2; 7.2.0 through 7.2.9; 7.0.0 through 7.0.15, and others listed below. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.52% 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
- Update Fortianalyzer to 6.2.14 or 6.4.15 or 7.0.12 or 7.2.5, whichever matches your release line, or a later version.
- Update Fortivoice to 6.4.9 or 7.0.3, whichever matches your release line, or a later version.
- Update Fortiweb to 7.4.3 or a later version.
- Read the advisory on fortiguard.fortinet.com for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
- Because the attack needs a user to take part, warn users about unexpected links and files related to this product until it is patched.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Fortinet | FortiProxy | 7.4.0 through 7.4.2; 7.2.0 through 7.2.9; 7.0.0 through 7.0.15; 2.0.0 through 2.0.14 | Not stated |
| Fortinet | FortiManager | 7.4.0 through 7.4.2; 7.2.0 through 7.2.4; 7.0.0 through 7.0.11; 6.4.0 through 6.4.14; 6.2.0 through 6.2.13 | Not stated |
| Fortinet | FortiOS | 7.4.0 through 7.4.3; 7.2.0 through 7.2.7; 7.0.0 through 7.0.14; 6.4.0 through 6.4.15; 6.2.0 through 6.2.16 | Not stated |
| Fortinet | Fortianalyzer | 6.2.0 up to, but not including, 6.2.14; 6.4.0 up to, but not including, 6.4.15; 7.0.0 up to, but not including, 7.0.12; 7.2.0 up to, but not including, 7.2.5; 7.4.0 up to, but not including, 7.4.3 | 6.2.14, 6.4.15, 7.0.12, 7.2.5, 7.4.3 |
| Fortinet | Fortivoice | 6.0.0 up to, but not including, 6.4.9; 7.0.0 up to, but not including, 7.0.3 | 6.4.9, 7.0.3 |
| Fortinet | Fortiweb | 7.4.0 up to, but not including, 7.4.3 | 7.4.3 |
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
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- HighSuccess depends on conditions outside the attacker's control.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- RequiredA user must take an action such as opening a file or link.
- 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:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H. Scored by CNA (fortinet.com).
Official description
A improper restriction of communication channel to intended endpoints vulnerability [CWE-923] in Fortinet FortiOS version 7.4.0 through 7.4.4, 7.2.0 through 7.2.8, 7.0.0 through 7.0.15, 6.4.0 through 6.4.15 and before 6.2.16, Fortinet FortiProxy version 7.4.0 through 7.4.2, 7.2.0 through 7.2.9 and before 7.0.15, Fortinet FortiManager version 7.4.0 through 7.4.2, 7.2.0 through 7.2.4, 7.0.0 through 7.0.11, 6.4.0 through 6.4.14 and before 6.2.13, Fortinet FortiAnalyzer version 7.4.0 through 7.4.2, 7.2.0 through 7.2.4, 7.0.0 through 7.0.11, 6.4.0 through 6.4.14 and before 6.2.13, Fortinet FortiVoice version 7.0.0 through 7.0.2 before 6.4.8 and Fortinet FortiWeb before 7.4.2 may allow an unauthenticated attacker in a man-in-the-middle position to impersonate the management device (FortiCloud server or/and in certain conditions, FortiManager), via intercepting the FGFM authentication request between the management device and the managed device
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Restriction of Communication Channel to Intended Endpoints
The product establishes a communication channel to (or from) an endpoint for privileged or protected operations, but it does not properly ensure that it is communicating with the correct endpoint.
More Improper Restriction of Communication Channel to Intended Endpoints vulnerabilities (CWE-923)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in FortiProxy
- 8.1 High severity
- 6.5 Medium severity
- 9.8 Critical severity
- 9.8 Critical severity
- 8.8 High severity
- 7.5 High severity
Recent Improper Restriction of Communication Channel to Intended Endpoints vulnerabilities
- 8.3 High severity
- 9.1 Critical severity
- 8.2 High severity
- 9.8 Critical severity
- 7.0 High severity
- 7.5 High severity
Spotted an error? Tell us.