github - ghsa-8jmm-6g59-87gc

ghsa-8jmm-6g59-87gc

Vulnerability from github

Published

2022-05-13 01:16

Modified

2022-05-13 01:16

Severity ?

9.9 (Critical) - CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Details

A privilege escalation issue was discovered in VyOS 1.1.8. The default configuration also allows operator users to execute the pppd binary with elevated (sudo) permissions. Certain input parameters are not properly validated. A malicious operator user can run the binary with elevated permissions and leverage its improper input validation condition to spawn an attacker-controlled shell with root privileges.

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{
  "affected": [],
  "aliases": [
    "CVE-2018-18556"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-12-17T19:29:00Z",
    "severity": "CRITICAL"
  },
  "details": "A privilege escalation issue was discovered in VyOS 1.1.8. The default configuration also allows operator users to execute the pppd binary with elevated (sudo) permissions. Certain input parameters are not properly validated. A malicious operator user can run the binary with elevated permissions and leverage its improper input validation condition to spawn an attacker-controlled shell with root privileges.",
  "id": "GHSA-8jmm-6g59-87gc",
  "modified": "2022-05-13T01:16:08Z",
  "published": "2022-05-13T01:16:08Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-18556"
    },
    {
      "type": "WEB",
      "url": "https://blog.mirch.io/2018/11/05/cve-2018-18556-vyos-privilege-escalation-via-sudo-pppd-for-operator-users"
    },
    {
      "type": "WEB",
      "url": "https://blog.vyos.io/the-operator-level-is-proved-insecure-and-will-be-removed-in-the-next-releases"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/159234/VyOS-restricted-shell-Escape-Privilege-Escalation.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2018-18556 (GCVE-0-2018-18556)

Vulnerability from cvelistv5

Published

2018-12-17 18:00

Modified

2024-08-05 11:15

Severity ?

CWE

n/a

Summary

A privilege escalation issue was discovered in VyOS 1.1.8. The default configuration also allows operator users to execute the pppd binary with elevated (sudo) permissions. Certain input parameters are not properly validated. A malicious operator user can run the binary with elevated permissions and leverage its improper input validation condition to spawn an attacker-controlled shell with root privileges.

References

URL

Tags

	https://blog.vyos.io/the-operator-level-is-proved-insecure-and-will-be-removed-in-the-next-releases	x_refsource_CONFIRM
	https://blog.mirch.io/2018/11/05/cve-2018-18556-vyos-privilege-escalation-via-sudo-pppd-for-operator-users/	x_refsource_MISC
	http://packetstormsecurity.com/files/159234/VyOS-restricted-shell-Escape-Privilege-Escalation.html	x_refsource_MISC

Impacted products

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

Show details on NVD website

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}

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