BIG-IP Edge Client: Insufficient Verification of Data Authenticity
CVE-2023-5450 is a high-severity insufficient verification of data authenticity vulnerability in BIG-IP Edge Client from F5, 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 unauthenticated attacker, but only if a user takes part, for example by opening a link or file. The record lists version 7.2.4.5 as the first without the flaw, so updating BIG-IP Edge Client to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.15% 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 BIG-IP Edge Client to 7.2.4.5 or a later version.
- Update big-ip_access_policy_manager to 17.1.1.1 or 16.1.4.2 or 15.1.10.3, whichever matches your release line, or a later version.
- Update access_policy_manager_clients to 7.2.5 or a later version.
- Read the advisory on my.f5.com for workarounds and exact fixed builds.
- 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 |
|---|---|---|---|
| F5 | BIG-IP Edge Client | 7.2.3 up to, but not including, 7.2.4.5 | 7.2.4.5 |
| F5 | big-ip_access_policy_manager | 17.1.0 up to, but not including, 17.1.1.1; 16.1.0 up to, but not including, 16.1.4.2; 15.1.0 up to, but not including, 15.1.10.3 | 17.1.1.1, 16.1.4.2, 15.1.10.3 |
| F5 | access_policy_manager_clients | 7.2.3 up to, but not including, 7.2.5 | 7.2.5 |
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
- 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:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 7.3 | High | CNA (f5.com) |
| CVSS 3.1 | 7.8 | High | NVD |
Official description
An insufficient verification of data vulnerability exists in BIG-IP Edge Client Installer on macOS that may allow an attacker elevation of privileges during the installation process. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Insufficient Verification of Data Authenticity
The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.
More Insufficient Verification of Data Authenticity vulnerabilities (CWE-345)
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
Advisories
Other vulnerabilities in BIG-IP Edge Client
- 7.3 High severity
- 7.4 High severity
- 7.8 High severity
- 8.2 High severity
- 7.1 High severity
- 7.8 High severity
Recent Insufficient Verification of Data Authenticity vulnerabilities
- 9.0 Critical severity
- 8.8 High severity
- 7.8 High severity
- 7.2 High severity
- 7.8 High severity
RARLAB WinRAR Code Execution Exploited
- 7.8 High severity
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