Fortinet FortiOS, FortiProxy: Access of Uninitialized Pointer
CVE-2022-29055 is a high-severity access of uninitialized pointer vulnerability in Fortinet FortiOS, 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, without any action from a user. There is no confirmed exploitation so far. EPSS estimates a 1.13% chance of exploitation within 30 days, higher than 67% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Fortiproxy to 1.2.13 or 2.0.10 or 7.0.7, whichever matches your release line, or a later version.
- Update Fortios to 6.2.11 or 6.4.10 or 7.0.7, whichever matches your release line, or a later version.
- Read the advisory on fortiguard.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.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Fortinet | Fortinet FortiOS, FortiProxy | Not specified in the record | Not stated |
| Fortinet | Fortiproxy | 1.2.6 up to, but not including, 1.2.13; 2.0.0 up to, but not including, 2.0.10; 7.0.0 up to, but not including, 7.0.7; 7.2.0 | 1.2.13, 2.0.10, 7.0.7 |
| Fortinet | Fortios | 6.2.0 up to, but not including, 6.2.11; 6.4.0 up to, but not including, 6.4.10; 7.0.0 up to, but not including, 7.0.7; 7.2.0 | 6.2.11, 6.4.10, 7.0.7 |
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
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- NoneNo data is disclosed.
- Integrity
- NoneNothing can be modified.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 7.5 | High | CNA (fortinet.com) |
| CVSS 3.1 | 7.5 | High | NVD |
Official description
A access of uninitialized pointer in Fortinet FortiOS version 7.2.0, 7.0.0 through 7.0.5, 6.4.0 through 6.4.8, 6.2.0 through 6.2.10, 6.0.x, FortiProxy version 7.0.0 through 7.0.4, 2.0.0 through 2.0.9, 1.2.x allows a remote unauthenticated or authenticated attacker to crash the sslvpn daemon via an HTTP GET request.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Access of Uninitialized Pointer
The product accesses or uses a pointer that has not been initialized.
More Access of Uninitialized Pointer vulnerabilities (CWE-824)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Advisories
Other vulnerabilities in Fortinet FortiOS, FortiProxy
- 7.5 High severity
- 9.8 Critical severity
Fortinet FortiOS SSL VPN Path Traversal Exploited
Recent Access of Uninitialized Pointer vulnerabilities
- 7.5 High severity
- 7.5 High severity
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
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