github - ghsa-7x29-jh5v-6wwf

GHSA-7X29-JH5V-6WWF

Vulnerability from github – Published: 2023-10-23 15:30 – Updated: 2024-04-04 08:53

Details

The Zscaler Client Connector for macOS prior to 3.6 did not sufficiently validate RPC clients. A local adversary without sufficient privileges may be able to shutdown the Zscaler tunnel by exploiting a race condition.

Severity ?

5.5 (Medium)


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

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2021-26737"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-346"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-10-23T14:15:09Z",
    "severity": "MODERATE"
  },
  "details": "The Zscaler Client Connector for macOS prior to 3.6 did not sufficiently validate RPC clients. A local adversary without sufficient privileges may be able to shutdown the Zscaler tunnel by exploiting a race condition.\n\n\n",
  "id": "GHSA-7x29-jh5v-6wwf",
  "modified": "2024-04-04T08:53:01Z",
  "published": "2023-10-23T15:30:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-26737"
    },
    {
      "type": "WEB",
      "url": "https://help.zscaler.com/client-connector/client-connector-app-release-summary-2022?applicable_category=macOS\u0026applicable_version=3.6\u0026deployment_date=2022-01-07\u0026id=1388686"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2021-26737 (GCVE-0-2021-26737)

Vulnerability from cvelistv5 – Published: 2023-10-23 13:22 – Updated: 2024-09-11 14:32

Summary

Severity ?

5.5 (Medium)


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

CWE

CWE-346 - Origin Validation Error

Assigner

Zscaler

References

URL

Tags

https://help.zscaler.com/client-connector/client-…

Impacted products

	Vendor	Product	Version
	Zscaler	Client Connector	Affected: 0 , < 3.6 (custom)

Credits

Thomas Chauchefoin (SonarSource), Dave Satchell (Avast Red Team)

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T20:33:40.693Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
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        "references": [
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            "tags": [
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            "url": "https://help.zscaler.com/client-connector/client-connector-app-release-summary-2022?applicable_category=macOS\u0026applicable_version=3.6\u0026deployment_date=2022-01-07\u0026id=1388686"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
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            "other": {
              "content": {
                "id": "CVE-2021-26737",
                "options": [
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                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-11T14:16:46.100288Z",
                "version": "2.0.3"
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        "providerMetadata": {
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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        },
        "title": "CISA ADP Vulnrichment"
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    ],
    "cna": {
      "affected": [
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          "product": "Client Connector",
          "vendor": "Zscaler",
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            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
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        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Privilege Escalation Using PID Reuse in ZCC macOS",
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  "cveMetadata": {
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    "datePublished": "2023-10-23T13:22:51.537Z",
    "dateReserved": "2021-02-05T20:34:27.824Z",
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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-7X29-JH5V-6WWF

CVE-2021-26737 (GCVE-0-2021-26737)

Tags

Sightings

Nomenclature