AOS-8 Instant and AOS-10 AP: Stack-based Buffer Overflow
CVE-2024-31469 is a critical-severity stack-based buffer overflow vulnerability in AOS-8 Instant and AOS-10 AP from Hewlett Packard Enterprise, with a CVSS 3.1 base score of 9.8 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected AOS-8 Instant and AOS-10 AP versions: 10.5.0.0 through 10.5.1.0; 10.4.0.0 through 10.4.1.0; 8.11.0.0 through 8.11.2.1, 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 1.14% chance of exploitation within 30 days, higher than 67% of scored CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Update arubaos to 10.4.0.0 or a later version.
- Update instant to 8.10.0.0 or 8.9.0.0 or 8.6.0.0 or 8.8.0.0, whichever matches your release line, or a later version.
- Update Instantos to 8.6.0.24 or 8.10.0.11, whichever matches your release line, or a later version.
- 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 |
|---|---|---|---|
| Hewlett Packard Enterprise | AOS-8 Instant and AOS-10 AP | 10.5.0.0 through 10.5.1.0; 10.4.0.0 through 10.4.1.0; 8.11.0.0 through 8.11.2.1; 8.10.0.0 through 8.10.0.10; 8.6.0.0 through 8.6.0.23 | Not stated |
| Aruba Networks | arubaos | 10.5.0.0 through 10.5.1.0; 10.4.0.0 through 10.4.1.0; 10.3.0.0 up to, but not including, 10.4.0.0 | 10.4.0.0 |
| Aruba Networks | instant | 8.10.0.0 through 8.10.0.10; 8.11.0.0 through 8.11.2.1; 8.6.0.0 through 8.6.0.23; 8.9.0.0 up to, but not including, 8.10.0.0; 8.8.0.0 up to, but not including, 8.9.0.0; 8.5.0.0 up to, but not including, 8.6.0.0; 8.7.0.0 up to, but not including, 8.8.0.0; 8.4.0.0 up to, but not including, 8.5.0.0; and 2 more ranges | 8.10.0.0, 8.9.0.0, 8.6.0.0, 8.8.0.0, 8.5.0.0, 6.6.0.0 |
| HP | Instantos | 6.4.0.0 up to, but not including, 8.6.0.24; 8.7.0.0 up to, but not including, 8.10.0.11 | 8.6.0.24, 8.10.0.11 |
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
- 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:L/PR:N/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 9.8 | Critical | CNA (hpe.com) |
| CVSS 3.1 | 9.8 | Critical | NVD |
Official description
There are buffer overflow vulnerabilities in the underlying Central Communications service that could lead to unauthenticated remote code execution by sending specially crafted packets destined to the PAPI (Aruba's Access Point management protocol) UDP port (8211). Successful exploitation of these vulnerabilities result in the ability to execute arbitrary code as a privileged user on the underlying operating system.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Stack-based Buffer Overflow
The product writes past the end of a buffer that was allocated on the stack.
How developers prevent this class of flaw
- Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index checking. D3-SFCV (Stack Frame Canary Validation) from D3FEND discusses canary-based detection in detail.
- Use an abstraction library to abstract away risky APIs. Not a complete solution.
- Implement and perform bounds checking on input.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in AOS-8 Instant and AOS-10 AP
- 7.5 High severity
- 7.5 High severity
- 7.5 High severity
- 7.5 High severity
- 7.5 High severity
- 8.8 High severity
Recent Stack-based Buffer Overflow vulnerabilities
- 9.8 Critical severity
- 9.8 Critical severity
- 9.8 Critical severity
- 9.8 Critical severity
- 7.2 High severity
- 7.8 High severity
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