PowerStore: Improper Verification of Cryptographic Signature
CVE-2023-32449 is a high-severity improper verification of cryptographic signature vulnerability in PowerStore from Dell, 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. Affected PowerStore versions: Versions prior to 3.5.0.0-2050321. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.12% 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 powerstoreos to 3.5 or a later version.
- Update Powerstoret OS to 3.5.0.0-2050321 or a later version.
- Read the advisory on dell.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 |
|---|---|---|---|
| Dell | PowerStore | Versions prior to 3.5.0.0-2050321 | Not stated |
| Dell | powerstoreos | before 3.5 | 3.5 |
| Dell | Powerstoret OS | before 3.5.0.0-2050321 | 3.5.0.0-2050321 |
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 | 7.2 | High | CNA (emc.com) |
| CVSS 3.1 | 7.8 | High | NVD |
Official description
Dell PowerStore versions prior to 3.5 contain an improper verification of cryptographic signature vulnerability. An attacker can trick a high privileged user to install a malicious binary by bypassing the existing cryptographic signature checks
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Verification of Cryptographic Signature
The product does not verify, or incorrectly verifies, the cryptographic signature for data.
More Improper Verification of Cryptographic Signature vulnerabilities (CWE-347)
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
Other vulnerabilities in PowerStore
- 7.1 High severity
- 7.1 High severity
- 9.8 Critical severity
- 7.8 High severity
- 7.8 High severity
- 9.8 Critical severity
Recent Improper Verification of Cryptographic Signature vulnerabilities
- 7.8 High severity
- 7.7 High severity
- 8.8 High severity
- 9.1 Critical severity
- 7.8 High severity
- 7.5 High severity
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