LiveActive security incident?Get immediate response
CVE Record

CVE-2021-45885: An issue was discovered in Stormshield Network Security (SNS) 4.2.2 through 4.2.7 (fixed in 4.2.8).

An issue was discovered in Stormshield Network Security (SNS) 4.2.2 through 4.2.7 (fixed in 4.2.8). Under a specific update-migration scenario, the first SSH password change does not properly clear the old password.

UnknownCVSS not scoredNot KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

Stormshield reported that some SNS 4.2.2 through 4.2.7 systems may keep an old SSH password after the first password change during a specific update-migration scenario. The business risk is unauthorized administrative access if that old password is known or exposed.

Executive priority

Treat this as a targeted administrative-access risk rather than a broad internet-scale emergency. Prioritize validation for any affected SNS appliances because retained credentials can undermine password rotation and incident containment.

Technical view

CVE-2021-45885 affects Stormshield Network Security 4.2.2 through 4.2.7 and is fixed in 4.2.8. The flaw is improper clearing of a previous SSH password after the first password change under a specific update-migration path. No CVSS or CWE data was provided in the source bundle.

Likely exposure

Exposure appears limited to SNS deployments on versions 4.2.2 through 4.2.7 that followed the specific update-migration scenario and changed an SSH password afterward. Systems not running those versions, or already updated to 4.2.8, are less likely to be affected based on available sources.

Exploitation context

The provided sources do not show CISA KEV listing or active exploitation. Abuse would require knowledge of a retained old SSH password and access to the relevant SSH authentication surface. Evidence is incomplete on prevalence and practical exploitability.

Researcher notes

The record lacks CVSS, CWE, detailed migration prerequisites, and explicit attack surface details. Do not assume all SNS installations are affected. The strongest source-grounded statement is version range, specific update-migration condition, old SSH password retention, and fix in 4.2.8.

Mitigation direction

  • Upgrade affected SNS systems to version 4.2.8 or later.
  • Review Stormshield advisory 2021-069 for vendor-specific instructions.
  • Identify SNS appliances that underwent the relevant update-migration path.
  • Follow vendor guidance before making operational SSH access changes.

Validation and detection

  • Inventory SNS versions and flag 4.2.2 through 4.2.7.
  • Check change records for affected update-migration activity.
  • Review SSH password-change history for affected appliances.
  • In an authorized maintenance window, verify retired SSH credentials are rejected.
Prepared
Confidence
medium
Sources
4

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

Credential and access behavior lookup

The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2021-45885 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.