github - ghsa-wg87-3vq4-8632

GHSA-WG87-3VQ4-8632

Vulnerability from github – Published: 2022-05-24 16:55 – Updated: 2024-04-04 01:51

Details

An issue was discovered in Avira Free Security Suite 10. The permissive access rights on the SoftwareUpdater folder (files / folders and configuration) are incompatible with the privileged file manipulation performed by the product. Files can be created that can be used by an unprivileged user to obtain SYSTEM privileges. Arbitrary file creation can be achieved by abusing the SwuConfig.json file creation: an unprivileged user can replace these files by pseudo-symbolic links to arbitrary files. When an update occurs, a privileged service creates a file and sets its access rights, offering write access to the Everyone group in any directory.

Severity ?

7.8 (High)


                  
                    CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2019-11396"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-59"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-08-29T20:15:00Z",
    "severity": "HIGH"
  },
  "details": "An issue was discovered in Avira Free Security Suite 10. The permissive access rights on the SoftwareUpdater folder (files / folders and configuration) are incompatible with the privileged file manipulation performed by the product. Files can be created that can be used by an unprivileged user to obtain SYSTEM privileges. Arbitrary file creation can be achieved by abusing the SwuConfig.json file creation: an unprivileged user can replace these files by pseudo-symbolic links to arbitrary files. When an update occurs, a privileged service creates a file and sets its access rights, offering write access to the Everyone group in any directory.",
  "id": "GHSA-wg87-3vq4-8632",
  "modified": "2024-04-04T01:51:16Z",
  "published": "2022-05-24T16:55:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-11396"
    },
    {
      "type": "WEB",
      "url": "https://medium.com/sidechannel-br/vulnerabilidade-no-avira-security-suite-pode-levar-%C3%A0-escala%C3%A7%C3%A3o-de-privil%C3%A9gios-no-windows-71964236c077"
    },
    {
      "type": "WEB",
      "url": "https://seclists.org/fulldisclosure/2019/Aug/1"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/153868/Avira-Free-Security-Suite-2019-Software-Updater-2.0.6.13175-Improper-Access-Control.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2019-11396 (GCVE-0-2019-11396)

Vulnerability from cvelistv5 – Published: 2019-08-29 19:06 – Updated: 2024-08-04 22:55

Summary

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	http://packetstormsecurity.com/files/153868/Avira…	x_refsource_MISC
	https://seclists.org/fulldisclosure/2019/Aug/1	mailing-listx_refsource_FULLDISC
	https://medium.com/sidechannel-br/vulnerabilidade…	x_refsource_MISC

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        "providerMetadata": {
          "dateUpdated": "2024-08-04T22:55:39.633Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/153868/Avira-Free-Security-Suite-2019-Software-Updater-2.0.6.13175-Improper-Access-Control.html"
          },
          {
            "name": "20190802 Avira Free Security Suite 2019 - Exploiting Arbitrary File Writes for Local Elevation of Privilege",
            "tags": [
              "mailing-list",
              "x_refsource_FULLDISC",
              "x_transferred"
            ],
            "url": "https://seclists.org/fulldisclosure/2019/Aug/1"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://medium.com/sidechannel-br/vulnerabilidade-no-avira-security-suite-pode-levar-%C3%A0-escala%C3%A7%C3%A3o-de-privil%C3%A9gios-no-windows-71964236c077"
          }
        ],
        "title": "CVE Program Container"
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    ],
    "cna": {
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        }
      ],
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              "type": "text"
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      "providerMetadata": {
        "dateUpdated": "2019-09-26T16:22:51",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
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        },
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          "url": "https://medium.com/sidechannel-br/vulnerabilidade-no-avira-security-suite-pode-levar-%C3%A0-escala%C3%A7%C3%A3o-de-privil%C3%A9gios-no-windows-71964236c077"
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      "x_legacyV4Record": {
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        "affects": {
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                "vendor_name": "n/a"
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            }
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        "problemtype": {
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            },
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            },
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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-WG87-3VQ4-8632

CVE-2019-11396 (GCVE-0-2019-11396)

Tags

Sightings

Nomenclature