rhsa-2020_0754
Vulnerability from csaf_redhat
Published
2020-03-10 11:19
Modified
2024-11-14 22:45
Summary
Red Hat Security Advisory: novnc security update

Notes

Topic
An updated novnc package that fixes one security issue is now available for Red Hat Enterprise Linux OpenStack Platform 13.0. Red Hat Product Security has rated this update as having Moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.
Details
The novnc package provides a VNC client that uses HTML5 (Web Sockets, Canvas) and includes encryption support. An XSS vulnerability was discovered in noVNC in which arbitrary HTML could be injected into the noVNC web page. An attacker having access to a VNC server could use target host values in a crafted URL to gain access to secure information (such as VM tokens). (CVE-2017-18635) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.


To clipboard 

{
  "document": {
    "aggregate_severity": {
      "namespace": "https://access.redhat.com/security/updates/classification/",
      "text": "Moderate"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "An updated novnc package that fixes one security issue is now available for\nRed Hat Enterprise Linux OpenStack Platform 13.0.\n\nRed Hat Product Security has rated this update as having Moderate security\nimpact. A Common Vulnerability Scoring System (CVSS) base score, which\ngives a detailed severity rating, is available from the CVE link in the\nReferences section.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "The novnc package provides a VNC client that uses HTML5 (Web Sockets, Canvas) and includes encryption support.\n\nAn XSS vulnerability was discovered in noVNC in which arbitrary HTML could be injected into the noVNC web page. An attacker having access to a VNC server could use target host values in a crafted URL to gain access to secure information (such as VM tokens). (CVE-2017-18635)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
        "title": "Details"
      },
      {
        "category": "legal_disclaimer",
        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
        "title": "Terms of Use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://access.redhat.com/security/team/contact/",
      "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.",
      "name": "Red Hat Product Security",
      "namespace": "https://www.redhat.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "https://access.redhat.com/errata/RHSA-2020:0754",
        "url": "https://access.redhat.com/errata/RHSA-2020:0754"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/updates/classification/#moderate",
        "url": "https://access.redhat.com/security/updates/classification/#moderate"
      },
      {
        "category": "external",
        "summary": "1484711",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1484711"
      },
      {
        "category": "external",
        "summary": "1765660",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1765660"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2020/rhsa-2020_0754.json"
      }
    ],
    "title": "Red Hat Security Advisory: novnc security update",
    "tracking": {
      "current_release_date": "2024-11-14T22:45:03+00:00",
      "generator": {
        "date": "2024-11-14T22:45:03+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "4.2.1"
        }
      },
      "id": "RHSA-2020:0754",
      "initial_release_date": "2020-03-10T11:19:55+00:00",
      "revision_history": [
        {
          "date": "2020-03-10T11:19:55+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2020-03-10T11:19:55+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2024-11-14T22:45:03+00:00",
          "number": "3",
          "summary": "Last generated version"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Red Hat OpenStack Platform 13.0",
                "product": {
                  "name": "Red Hat OpenStack Platform 13.0",
                  "product_id": "7Server-RH7-RHOS-13.0",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:redhat:openstack:13::el7"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "Red Hat OpenStack Platform 13.0 for RHEL 7.6 EUS Server",
                "product": {
                  "name": "Red Hat OpenStack Platform 13.0 for RHEL 7.6 EUS Server",
                  "product_id": "7Server-7.6.EUS-RH7-RHOS-13.0",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:redhat:openstack:13::el7"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Red Hat OpenStack Platform"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "novnc-0:1.1.0-2.el7ost.noarch",
                "product": {
                  "name": "novnc-0:1.1.0-2.el7ost.noarch",
                  "product_id": "novnc-0:1.1.0-2.el7ost.noarch",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/novnc@1.1.0-2.el7ost?arch=noarch"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "noarch"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "novnc-0:1.1.0-2.el7ost.src",
                "product": {
                  "name": "novnc-0:1.1.0-2.el7ost.src",
                  "product_id": "novnc-0:1.1.0-2.el7ost.src",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/novnc@1.1.0-2.el7ost?arch=src"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "src"
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "novnc-0:1.1.0-2.el7ost.noarch as a component of Red Hat OpenStack Platform 13.0 for RHEL 7.6 EUS Server",
          "product_id": "7Server-7.6.EUS-RH7-RHOS-13.0:novnc-0:1.1.0-2.el7ost.noarch"
        },
        "product_reference": "novnc-0:1.1.0-2.el7ost.noarch",
        "relates_to_product_reference": "7Server-7.6.EUS-RH7-RHOS-13.0"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "novnc-0:1.1.0-2.el7ost.src as a component of Red Hat OpenStack Platform 13.0 for RHEL 7.6 EUS Server",
          "product_id": "7Server-7.6.EUS-RH7-RHOS-13.0:novnc-0:1.1.0-2.el7ost.src"
        },
        "product_reference": "novnc-0:1.1.0-2.el7ost.src",
        "relates_to_product_reference": "7Server-7.6.EUS-RH7-RHOS-13.0"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "novnc-0:1.1.0-2.el7ost.noarch as a component of Red Hat OpenStack Platform 13.0",
          "product_id": "7Server-RH7-RHOS-13.0:novnc-0:1.1.0-2.el7ost.noarch"
        },
        "product_reference": "novnc-0:1.1.0-2.el7ost.noarch",
        "relates_to_product_reference": "7Server-RH7-RHOS-13.0"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "novnc-0:1.1.0-2.el7ost.src as a component of Red Hat OpenStack Platform 13.0",
          "product_id": "7Server-RH7-RHOS-13.0:novnc-0:1.1.0-2.el7ost.src"
        },
        "product_reference": "novnc-0:1.1.0-2.el7ost.src",
        "relates_to_product_reference": "7Server-RH7-RHOS-13.0"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2017-18635",
      "cwe": {
        "id": "CWE-79",
        "name": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)"
      },
      "discovery_date": "2019-10-25T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1765660"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "An XSS vulnerability was discovered in noVNC in which arbitrary HTML could be injected into the noVNC web page. An attacker having access to a VNC server could use target host values in a crafted URL to gain access to secure information (such as VM tokens).",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "novnc: XSS vulnerability via the messages propagated to the status field",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "7Server-7.6.EUS-RH7-RHOS-13.0:novnc-0:1.1.0-2.el7ost.noarch",
          "7Server-7.6.EUS-RH7-RHOS-13.0:novnc-0:1.1.0-2.el7ost.src",
          "7Server-RH7-RHOS-13.0:novnc-0:1.1.0-2.el7ost.noarch",
          "7Server-RH7-RHOS-13.0:novnc-0:1.1.0-2.el7ost.src"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2017-18635"
        },
        {
          "category": "external",
          "summary": "RHBZ#1765660",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1765660"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2017-18635",
          "url": "https://www.cve.org/CVERecord?id=CVE-2017-18635"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2017-18635",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-18635"
        },
        {
          "category": "external",
          "summary": "https://github.com/novnc/noVNC/releases/tag/v0.6.2",
          "url": "https://github.com/novnc/noVNC/releases/tag/v0.6.2"
        }
      ],
      "release_date": "2019-01-12T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2020-03-10T11:19:55+00:00",
          "details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
            "7Server-7.6.EUS-RH7-RHOS-13.0:novnc-0:1.1.0-2.el7ost.noarch",
            "7Server-7.6.EUS-RH7-RHOS-13.0:novnc-0:1.1.0-2.el7ost.src",
            "7Server-RH7-RHOS-13.0:novnc-0:1.1.0-2.el7ost.noarch",
            "7Server-RH7-RHOS-13.0:novnc-0:1.1.0-2.el7ost.src"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2020:0754"
        },
        {
          "category": "workaround",
          "details": "There is no known mitigation for this issue, the flaw can only be resolved by applying updates.",
          "product_ids": [
            "7Server-7.6.EUS-RH7-RHOS-13.0:novnc-0:1.1.0-2.el7ost.noarch",
            "7Server-7.6.EUS-RH7-RHOS-13.0:novnc-0:1.1.0-2.el7ost.src",
            "7Server-RH7-RHOS-13.0:novnc-0:1.1.0-2.el7ost.noarch",
            "7Server-RH7-RHOS-13.0:novnc-0:1.1.0-2.el7ost.src"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
            "version": "3.0"
          },
          "products": [
            "7Server-7.6.EUS-RH7-RHOS-13.0:novnc-0:1.1.0-2.el7ost.noarch",
            "7Server-7.6.EUS-RH7-RHOS-13.0:novnc-0:1.1.0-2.el7ost.src",
            "7Server-RH7-RHOS-13.0:novnc-0:1.1.0-2.el7ost.noarch",
            "7Server-RH7-RHOS-13.0:novnc-0:1.1.0-2.el7ost.src"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "novnc: XSS vulnerability via the messages propagated to the status field"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.