Vulnerability-Lookup

PYSEC-2017-152

Vulnerability from pysec - Published: 2017-09-21 21:29 - Updated: 2026-05-21 14:54

Details

A flaw was found in instack-undercloud 7.2.0 as packaged in Red Hat OpenStack Platform Pike, 6.1.0 as packaged in Red Hat OpenStack Platform Oacta, 5.3.0 as packaged in Red Hat OpenStack Newton, where pre-install and security policy scripts used insecure temporary files. A local user could exploit this flaw to conduct a symbolic-link attack, allowing them to overwrite the contents of arbitrary files.

Severity

6.4 (Medium)


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

Impacted products

Name	purl
instack	pkg:pypi/instack

Aliases

CVE-2017-7549

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {},
      "package": {
        "ecosystem": "PyPI",
        "name": "instack",
        "purl": "pkg:pypi/instack"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "7.2.0"
            },
            {
              "last_affected": "6.1.0"
            },
            {
              "last_affected": "5.3.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.0.9.dev4",
        "5.0.0",
        "5.0.0.0b1",
        "5.0.0.0b2",
        "5.1.0"
      ]
    }
  ],
  "aliases": [
    "CVE-2017-7549"
  ],
  "details": "A flaw was found in instack-undercloud 7.2.0 as packaged in Red Hat OpenStack Platform Pike, 6.1.0 as packaged in Red Hat OpenStack Platform Oacta, 5.3.0 as packaged in Red Hat OpenStack Newton, where pre-install and security policy scripts used insecure temporary files. A local user could exploit this flaw to conduct a symbolic-link attack, allowing them to overwrite the contents of arbitrary files.",
  "id": "PYSEC-2017-152",
  "modified": "2026-05-21T14:54:30.554896Z",
  "published": "2017-09-21T21:29:00.447Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "http://www.securityfocus.com/bid/100407"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2017:2557"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2017:2649"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2017:2687"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2017:2693"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2017:2726"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1477403"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2017-7549 (GCVE-0-2017-7549)

Vulnerability from cvelistv5 – Published: 2017-09-21 20:00 – Updated: 2024-08-05 16:04

Summary

Severity

No CVSS data available.

CWE

CWE-377

Assigner

redhat redhat root

References

7 references

URL	Tags
https://access.redhat.com/errata/RHSA-2017:2726	vendor-advisoryx_refsource_REDHAT
http://www.securityfocus.com/bid/100407	vdb-entryx_refsource_BID
https://access.redhat.com/errata/RHSA-2017:2649	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2017:2687	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2017:2557	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2017:2693	vendor-advisoryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=1477403	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
Red Hat, Inc.	instack-undercloud	Affected: Pike, 12: v7.2.0, Ocata, 11: v6.1.0, Newton, 10: v5.3.0

Date Public

2017-08-14 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T16:04:12.059Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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            "url": "https://access.redhat.com/errata/RHSA-2017:2726"
          },
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            "url": "http://www.securityfocus.com/bid/100407"
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            "url": "https://access.redhat.com/errata/RHSA-2017:2649"
          },
          {
            "name": "RHSA-2017:2687",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
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            "url": "https://access.redhat.com/errata/RHSA-2017:2687"
          },
          {
            "name": "RHSA-2017:2557",
            "tags": [
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              "x_refsource_REDHAT",
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            "url": "https://access.redhat.com/errata/RHSA-2017:2557"
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          {
            "name": "RHSA-2017:2693",
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            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1477403"
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        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "instack-undercloud",
          "vendor": "Red Hat, Inc.",
          "versions": [
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        }
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      "providerMetadata": {
        "dateUpdated": "2018-01-04T19:57:01.000Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
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        },
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          "name": "100407",
          "tags": [
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          "url": "http://www.securityfocus.com/bid/100407"
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        {
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        },
        {
          "name": "RHSA-2017:2557",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2017:2557"
        },
        {
          "name": "RHSA-2017:2693",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2017:2693"
        },
        {
          "tags": [
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          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1477403"
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  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
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    "datePublished": "2017-09-21T20:00:00.000Z",
    "dateReserved": "2017-04-05T00:00:00.000Z",
    "dateUpdated": "2024-08-05T16:04:12.059Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.