github - ghsa-pmxq-4hqc-9hr4

GHSA-PMXQ-4HQC-9HR4

Vulnerability from github – Published: 2025-03-24 18:31 – Updated: 2025-03-24 18:31

Details

A use of a cryptographically weak pseudo-random number generator vulnerability in the authenticator of the Identity Based Encryption service of FortiMail 6.4.0 through 6.4.4, and 6.2.0 through 6.2.7 may allow an unauthenticated attacker to infer parts of users authentication tokens and reset their credentials.

Severity ?

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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{
  "affected": [],
  "aliases": [
    "CVE-2021-26091"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-338"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-03-24T16:15:16Z",
    "severity": "HIGH"
  },
  "details": "A use of a cryptographically weak pseudo-random number generator vulnerability in the authenticator of the Identity Based Encryption service of FortiMail 6.4.0 through 6.4.4, and 6.2.0 through 6.2.7 may allow an unauthenticated attacker to infer parts of users authentication tokens and reset their credentials.",
  "id": "GHSA-pmxq-4hqc-9hr4",
  "modified": "2025-03-24T18:31:01Z",
  "published": "2025-03-24T18:31:01Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-26091"
    },
    {
      "type": "WEB",
      "url": "https://fortiguard.com/advisory/FG-IR-21-031"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2021-26091 (GCVE-0-2021-26091)

Vulnerability from cvelistv5 – Published: 2025-03-24 15:37 – Updated: 2025-03-31 18:11

Summary

Severity ?

6.9 (Medium)


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

CWE

CWE-338 - Improper Access Control

Assigner

fortinet

References

URL

Tags

https://fortiguard.com/advisory/FG-IR-21-031

Impacted products

	Vendor	Product	Version
	Fortinet	FortiMail	Affected: 6.4.0 , ≤ 6.4.4 (semver) Affected: 6.2.0 , ≤ 6.2.9 (semver) Affected: 6.2.0 , < 6.2.* (semver) cpe:2.3:a:fortinet:fortimail:6.4.4:::::::* cpe:2.3:a:fortinet:fortimail:6.4.3:::::::* cpe:2.3:a:fortinet:fortimail:6.4.2:::::::* cpe:2.3:a:fortinet:fortimail:6.4.1:::::::* cpe:2.3:a:fortinet:fortimail:6.4.0:::::::* cpe:2.3:a:fortinet:fortimail:6.2.9:::::::* cpe:2.3:a:fortinet:fortimail:6.2.8:::::::* cpe:2.3:a:fortinet:fortimail:6.2.7:::::::* cpe:2.3:a:fortinet:fortimail:6.2.6:::::::* cpe:2.3:a:fortinet:fortimail:6.2.5:::::::* cpe:2.3:a:fortinet:fortimail:6.2.4:::::::* cpe:2.3:a:fortinet:fortimail:6.2.3:::::::* cpe:2.3:a:fortinet:fortimail:6.2.2:::::::* cpe:2.3:a:fortinet:fortimail:6.2.1:::::::* cpe:2.3:a:fortinet:fortimail:6.2.0:::::::* cpe:2.3:a:fortinet:fortimail:6.2.:::::::

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-26091",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-03-31T18:11:46.513539Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-03-31T18:11:58.179Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:fortinet:fortimail:6.4.4:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:6.4.3:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:6.4.2:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:6.4.1:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:6.4.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:6.2.9:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:6.2.8:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:6.2.7:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:6.2.6:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:6.2.5:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:6.2.4:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:6.2.3:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:6.2.2:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:6.2.1:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:6.2.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:fortinet:fortimail:6.2.*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unaffected",
          "product": "FortiMail",
          "vendor": "Fortinet",
          "versions": [
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              "lessThanOrEqual": "6.4.4",
              "status": "affected",
              "version": "6.4.0",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "6.2.9",
              "status": "affected",
              "version": "6.2.0",
              "versionType": "semver"
            },
            {
              "lessThan": "6.2.*",
              "status": "affected",
              "version": "6.2.0",
              "versionType": "semver"
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          ]
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          "value": "A use of a cryptographically weak pseudo-random number generator vulnerability in the authenticator of the Identity Based Encryption service of FortiMail 6.4.0 through 6.4.4, and 6.2.0 through 6.2.7 may allow an unauthenticated attacker to infer parts of users authentication tokens and reset their credentials."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:U/RC:C",
            "version": "3.1"
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      "problemTypes": [
        {
          "descriptions": [
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              "cweId": "CWE-338",
              "description": "Improper Access Control",
              "lang": "en",
              "type": "CWE"
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      ],
      "providerMetadata": {
        "dateUpdated": "2025-03-24T15:37:58.370Z",
        "orgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8",
        "shortName": "fortinet"
      },
      "references": [
        {
          "name": "https://fortiguard.com/advisory/FG-IR-21-031",
          "url": "https://fortiguard.com/advisory/FG-IR-21-031"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Please upgrade to FortiMail version 7.0.0 or above\nPlease upgrade to FortiMail version 6.4.5 or above"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8",
    "assignerShortName": "fortinet",
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    "datePublished": "2025-03-24T15:37:58.370Z",
    "dateReserved": "2021-01-25T14:47:15.092Z",
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    "state": "PUBLISHED"
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-PMXQ-4HQC-9HR4

CVE-2021-26091 (GCVE-0-2021-26091)

Tags

Sightings

Nomenclature