PowerScale OneFS: Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG)
CVE-2022-26852 is a critical-severity incorrect usage of seeds in pseudo-random number generator (PRNG) vulnerability in PowerScale OneFS from Dell, 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. The record lists version 8.2.x, 9.0.0.x, 9.1.0.x, 9.2.0.x , 9.2.1.x, 9.3.0.x as the first without the flaw, so updating PowerScale OneFS to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 1.24% chance of exploitation within 30 days, higher than 70% of scored CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Update PowerScale OneFS to 8.2.x, 9.0.0.x, 9.1.0.x, 9.2.0.x , 9.2.1.x, 9.3.0.x or a later version.
- Read the advisory on dell.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 |
|---|---|---|---|
| Dell | PowerScale OneFS | before 8.2.x, 9.0.0.x, 9.1.0.x, 9.2.0.x , 9.2.1.x, 9.3.0.x | 8.2.x, 9.0.0.x, 9.1.0.x, 9.2.0.x , 9.2.1.x, 9.3.0.x |
| Dell | Emc Powerscale Onefs | 8.2.0 through 9.3.0.0 | Not stated |
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 | 8.1 | High | CNA (emc.com) |
| CVSS 3.1 | 9.8 | Critical | NVD |
| CVSS 2.0 | 7.5 | High | NVD |
Official description
Dell PowerScale OneFS, versions 8.2.x-9.3.x, contain a predictable seed in pseudo-random number generator. A remote unauthenticated attacker could potentially exploit this vulnerability, leading to an account compromise.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG)
The product uses a Pseudo-Random Number Generator (PRNG) but does not correctly manage seeds.
More Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG) vulnerabilities (CWE-335)
Timeline
- CVE record published.
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in PowerScale OneFS
- 7.8 High severity
- 7.5 High severity
- 7.8 High severity
- 7.5 High severity
- 9.8 Critical severity
- 7.5 High severity
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