github - ghsa-qxh8-75pv-8vmg

ghsa-qxh8-75pv-8vmg

Vulnerability from github

Published

2022-05-14 02:20

Modified

2022-05-14 02:20

Severity ?

7.5 (High) - CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

An issue was discovered in Open-Xchange OX Guard before 2.4.0-rev8. OX Guard uses an authentication token to identify and transfer guest users' credentials. The OX Guard API acts as a padding oracle by responding with different error codes depending on whether the provided token matches the encryption padding. In combination with AES-CBC, this allows attackers to guess the correct padding. Attackers may run brute-forcing attacks on the content of the guest authentication token and discover user credentials. For a practical attack vector, the guest users needs to have logged in, the content of the guest user's "OxReaderID" cookie and the value of the "auth" parameter needs to be known to the attacker.

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{
  "affected": [],
  "aliases": [
    "CVE-2016-4028"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2016-12-15T06:59:00Z",
    "severity": "HIGH"
  },
  "details": "An issue was discovered in Open-Xchange OX Guard before 2.4.0-rev8. OX Guard uses an authentication token to identify and transfer guest users\u0027 credentials.  The OX Guard API acts as a padding oracle by responding with different error codes depending on whether the provided token matches the encryption padding.  In combination with AES-CBC, this allows attackers to guess the correct padding.  Attackers may run brute-forcing attacks on the content of the guest authentication token and discover user credentials.  For a practical attack vector, the guest users needs to have logged in, the content of the guest user\u0027s \"OxReaderID\" cookie and the value of the \"auth\" parameter needs to be known to the attacker.",
  "id": "GHSA-qxh8-75pv-8vmg",
  "modified": "2022-05-14T02:20:11Z",
  "published": "2022-05-14T02:20:11Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-4028"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/archive/1/538732/100/0/threaded"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1036154"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2016-4028 (GCVE-0-2016-4028)

Vulnerability from cvelistv5

Published

2016-12-15 06:31

Modified

2024-08-06 00:17

Severity ?

CWE

n/a

Summary

An issue was discovered in Open-Xchange OX Guard before 2.4.0-rev8. OX Guard uses an authentication token to identify and transfer guest users' credentials. The OX Guard API acts as a padding oracle by responding with different error codes depending on whether the provided token matches the encryption padding. In combination with AES-CBC, this allows attackers to guess the correct padding. Attackers may run brute-forcing attacks on the content of the guest authentication token and discover user credentials. For a practical attack vector, the guest users needs to have logged in, the content of the guest user's "OxReaderID" cookie and the value of the "auth" parameter needs to be known to the attacker.

References

►

URL

Tags

	http://www.securitytracker.com/id/1036154	vdb-entry, x_refsource_SECTRACK
	http://www.securityfocus.com/archive/1/538732/100/0/threaded	mailing-list, x_refsource_BUGTRAQ

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

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