ghsa-557g-r22w-9wvx
Vulnerability from github
Published
2021-12-20 18:25
Modified
2023-02-28 16:47
Severity ?
8.8 (High) - CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
Incorrect Permission Assignment for Critical Resource in Singularity
Details

An issue was discovered in Singularity 3.1.0 to 3.2.0-rc2, a malicious user with local/network access to the host system (e.g. ssh) could exploit this vulnerability due to insecure permissions allowing a user to edit files within /run/singularity/instances/sing/<user>/<instance>. The manipulation of those files can change the behavior of the starter-suid program when instances are joined resulting in potential privilege escalation on the host.

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/sylabs/singularity"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.1.0"
            },
            {
              "fixed": "3.2.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2019-11328"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-269",
      "CWE-732"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-05-17T15:50:05Z",
    "nvd_published_at": "2019-05-14T21:29:00Z",
    "severity": "HIGH"
  },
  "details": "An issue was discovered in Singularity 3.1.0 to 3.2.0-rc2, a malicious user with local/network access to the host system (e.g. ssh) could exploit this vulnerability due to insecure permissions allowing a user to edit files within `/run/singularity/instances/sing/\u003cuser\u003e/\u003cinstance\u003e`. The manipulation of those files can change the behavior of the starter-suid program when instances are joined resulting in potential privilege escalation on the host.",
  "id": "GHSA-557g-r22w-9wvx",
  "modified": "2023-02-28T16:47:09Z",
  "published": "2021-12-20T18:25:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-11328"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sylabs/singularity/commit/618c9d56802399adb329c23ea2b70598eaff4a31"
    },
    {
      "type": "WEB",
      "url": "https://github.com/sylabs/singularity/releases/tag/v3.2.0"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5O3TPL5OOTIZEI4H6IQBCCISBARJ6WL3"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LIHV7DSEVTB5SUPEZ2UXGS3Q6WMEQSO2"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LNU5BUHFOTYUZVHFUSX2VG4S3RCPUEMA"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00028.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00059.html"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2019/05/16/1"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/108360"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Incorrect Permission Assignment for Critical Resource in Singularity"
}


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