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CVE Record

CVE-2021-32596: A use of one-way hash with a predictable salt vulnerability in the password storing mechanism of FortiPorta...

A use of one-way hash with a predictable salt vulnerability in the password storing mechanism of FortiPortal 6.0.0 through 6.04 may allow an attacker already in possession of the password store to decrypt the passwords by means of precomputed tables.

MediumCVSS 6Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

FortiPortal 6.0.0 through 6.0.4 used predictable salt values when hashing stored passwords. If an attacker already obtains the password store, this weakness may make password recovery easier using precomputed tables. The main business risk is credential exposure after a separate compromise.

Executive priority

Treat this as a moderate priority unless password store exposure is suspected. It does not describe direct remote compromise, but it can worsen the impact of an existing breach by turning stored password data into usable credentials.

Technical view

CVE-2021-32596 is a password storage design flaw in Fortinet FortiPortal 6.0.0-6.0.4. The CVSS vector is local, low complexity, high privileges, no user interaction, with high confidentiality impact. The vulnerability depends on prior possession of the password store.

Likely exposure

Exposure is limited to organizations still running FortiPortal 6.0.0, 6.0.1, 6.0.2, 6.0.3, or 6.0.4. Risk is highest where administrators, backups, or filesystem access paths could expose the password store.

Exploitation context

The source bundle does not show CISA KEV listing or active exploitation. The CVSS temporal metric indicates proof-of-concept exploitability, but exploitation requires already possessing the password store, so this is mainly a post-compromise credential risk.

Researcher notes

The record names only FortiPortal 6.0.0-6.0.4 and describes predictable salt use with one-way hashes. Do not assume other Fortinet products are affected. The bundle does not provide fixed versions or detailed remediation text beyond the FortiGuard advisory reference.

Mitigation direction

  • Check Fortinet FG-IR-21-094 for the supported fix or workaround.
  • Move affected FortiPortal systems off versions 6.0.0 through 6.0.4 per vendor guidance.
  • Restrict administrative, filesystem, and backup access to FortiPortal password data.
  • Rotate credentials if the password store may have been exposed.
  • Review backup retention and storage controls for copied password stores.

Validation and detection

  • Inventory FortiPortal deployments and record exact versions.
  • Confirm whether any instance runs 6.0.0, 6.0.1, 6.0.2, 6.0.3, or 6.0.4.
  • Review access logs and admin activity for possible password store access.
  • Check backup repositories for exposed FortiPortal password store copies.
  • Document vendor advisory status and remediation decisions.
Prepared
Confidence
high
Sources
3

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

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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-2021-32596 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
6 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N/E:P/RL:W/RC:C

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.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
6CVSS 3.1MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N/E:P/RL:W/RC:C1.54Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

6Medium
CVSS 3.1 vector shape for CVE-2021-32596Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N/E:P/RL:W/RC:C

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
FortinetFortinet FortiPortalFortiPortal 6.0.4, 6.0.3, 6.0.2, 6.0.1, 6.0.0Listed
Weakness

CWE details

No CWE listed

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