HPE Superdome Flex Server; HPE Superdome Flex…: Improper Neutralization of Special Elements in Output Used by a Downstream Component
CVE-2022-37933 is a high-severity improper neutralization of special elements in output used by a downstream component vulnerability in HPE Superdome Flex Server; HPE Superdome Flex 280 Server from Hewlett Packard Enterprise, 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 attacker with a low-privileged account, without any action from a user. Affected HPE Superdome Flex Server; HPE Superdome Flex 280 Server versions: Prior to 3.60.50; Prior to 1.40.60. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.28% 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 Superdome Flex 280 Firmware to 1.40.60 or a later version.
- Update Superdome Flex Firmware to 3.60.50 or a later version.
- Read the advisory on support.hpe.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Hewlett Packard Enterprise | HPE Superdome Flex Server; HPE Superdome Flex 280 Server | Prior to 3.60.50; Prior to 1.40.60 | Not stated |
| Hewlett Packard Enterprise | Superdome Flex 280 Firmware | before 1.40.60 | 1.40.60 |
| Hewlett Packard Enterprise | Superdome Flex Firmware | before 3.60.50 | 3.60.50 |
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
- LowA basic user account is enough.
- 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:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 7.3 | High | CNA (hpe.com) |
| CVSS 3.1 | 7.8 | High | NVD |
Official description
A potential security vulnerability has been identified in HPE Superdome Flex and Superdome Flex 280 servers. The vulnerability could be exploited to allow local unauthorized data injection. HPE has made the following software updates to resolve the vulnerability in HPE Superdome Flex firmware 3.60.50 and below and Superdome Flex 280 servers firmware 1.40.60 and below.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Neutralization of Special Elements in Output Used by a Downstream Component
The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.
How developers prevent this class of flaw
- Programming languages and supporting technologies might be chosen which are not subject to these issues.
- Utilize an appropriate mix of allowlist and denylist parsing to filter control-plane syntax from all input.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Recent Improper Neutralization of Special Elements in Output Used by a Downstream Component vulnerabilities
- 9.8 Critical severity
- 8.8 High severity
- 7.8 High severity
- 9.8 Critical severity
- 7.1 High severity
- 9.8 Critical severity
Spotted an error? Tell us.