GSD-2017-7543

Vulnerability from gsd - Updated: 2023-12-13 01:21
Details
A race-condition flaw was discovered in openstack-neutron before 7.2.0-12.1, 8.x before 8.3.0-11.1, 9.x before 9.3.1-2.1, and 10.x before 10.0.2-1.1, where, following a minor overcloud update, neutron security groups were disabled. Specifically, the following were reset to 0: net.bridge.bridge-nf-call-ip6tables and net.bridge.bridge-nf-call-iptables. The race was only triggered by an update, at which point an attacker could access exposed tenant VMs and network resources.
Aliases
Aliases
CVE-2017-7543
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{
  "GSD": {
    "alias": "CVE-2017-7543",
    "description": "A race-condition flaw was discovered in openstack-neutron before 7.2.0-12.1, 8.x before 8.3.0-11.1, 9.x before 9.3.1-2.1, and 10.x before 10.0.2-1.1, where, following a minor overcloud update, neutron security groups were disabled. Specifically, the following were reset to 0: net.bridge.bridge-nf-call-ip6tables and net.bridge.bridge-nf-call-iptables. The race was only triggered by an update, at which point an attacker could access exposed tenant VMs and network resources.",
    "id": "GSD-2017-7543",
    "references": [
      "https://www.suse.com/security/cve/CVE-2017-7543.html",
      "https://access.redhat.com/errata/RHSA-2017:2452",
      "https://access.redhat.com/errata/RHSA-2017:2451",
      "https://access.redhat.com/errata/RHSA-2017:2450",
      "https://access.redhat.com/errata/RHSA-2017:2449",
      "https://access.redhat.com/errata/RHSA-2017:2448",
      "https://access.redhat.com/errata/RHSA-2017:2447"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
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        "CVE-2017-7543"
      ],
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      "id": "GSD-2017-7543",
      "modified": "2023-12-13T01:21:06.485743Z",
      "schema_version": "1.4.0"
    }
  },
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        "STATE": "PUBLIC"
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          }
        ]
      },
      "impact": {
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            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N",
            "version": "3.0"
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            "refsource": "MISC",
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          }
        ]
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    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003e=7.0.0,\u003c7.2.1||\u003e=8.0.0,\u003c8.3.1||\u003e=9.0.0,\u003c9.3.2||\u003e=10.0.0,\u003c10.0.3",
          "affected_versions": "All versions starting from 7.0.0 before 7.2.1, all versions starting from 8.0.0 before 8.3.1, all versions starting from 9.0.0 before 9.3.2, all versions starting from 10.0.0 before 10.0.3",
          "cvss_v2": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "cvss_v3": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-362",
            "CWE-937"
          ],
          "date": "2019-10-09",
          "description": "A race-condition flaw was discovered in openstack-neutron: following a minor overcloud update, neutron security groups were disabled.",
          "fixed_versions": [
            "10.0.5"
          ],
          "identifier": "CVE-2017-7543",
          "identifiers": [
            "CVE-2017-7543"
          ],
          "not_impacted": "All versions before 7.0.0, all versions starting from 7.2.1 before 8.0.0, all versions starting from 8.3.1 before 9.0.0, all versions starting from 9.3.2 before 10.0.0, all versions starting from 10.0.3",
          "package_slug": "pypi/neutron",
          "pubdate": "2018-07-26",
          "solution": "Upgrade to version 10.0.5 or above.",
          "title": "Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition)",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2017-7543",
            "http://www.securityfocus.com/bid/100237",
            "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7543"
          ],
          "uuid": "49067477-82e3-47f7-9a1c-7b014e1d74bb"
        }
      ]
    },
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      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
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            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
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          "exploitabilityScore": 2.2,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2023-02-12T23:30Z",
      "publishedDate": "2018-07-26T14:29Z"
    }
  }
}


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  • 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.
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  • 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.



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