certfr_avis - CERTA-2011-AVI-396

CERTA-2011-AVI-396

Vulnerability from certfr_avis - Published: - Updated:

Des vulnérabilités dans Citrix Access Gateway Plug-in permettent d'exécuter du code arbitraire à distance.

Description

Des vulnérabilités ont été découvertes dans un composant ActiveX de Citrix Access Gateway Plug-in for Windows. L'exploitation de ces vulnérabilités, par le biais d'un site Web malveillant, permet l'exécution de code arbitraire à distance.

Solution

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

None

Impacted products

Vendor	Product	Description
Citrix	N/A	Citrix Access Gateway Plug-in for Windows versions 9.1 antérieures à 9.1-96.4.
Citrix	N/A	Citrix Access Gateway Plug-in for Windows versions 9.0 antérieures à 9.0-70.5 ;
Citrix	N/A	Citrix Access Gateway Plug-in for Windows versions 8.1 antérieures à 8.1-67.7 ;

References

Title

Publication Time

Tags

Bulletin de sécurité Citrix CTX129902 du 13 juillet 2011

None

vendor-advisory

Show details on source website

JSON

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{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "Citrix Access Gateway Plug-in for Windows versions 9.1 ant\u00e9rieures \u00e0 9.1-96.4.",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Citrix",
          "scada": false
        }
      }
    },
    {
      "description": "Citrix Access Gateway Plug-in for Windows versions 9.0 ant\u00e9rieures \u00e0 9.0-70.5 ;",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Citrix",
          "scada": false
        }
      }
    },
    {
      "description": "Citrix Access Gateway Plug-in for Windows versions 8.1 ant\u00e9rieures \u00e0 8.1-67.7 ;",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Citrix",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": null,
  "content": "## Description\n\nDes vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans un composant ActiveX de\nCitrix Access Gateway Plug-in for Windows. L\u0027exploitation de ces\nvuln\u00e9rabilit\u00e9s, par le biais d\u0027un site Web malveillant, permet\nl\u0027ex\u00e9cution de code arbitraire \u00e0 distance.\n\n## Solution\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des\ncorrectifs (cf. section Documentation).\n",
  "cves": [
    {
      "name": "CVE-2011-2882",
      "url": "https://www.cve.org/CVERecord?id=CVE-2011-2882"
    },
    {
      "name": "CVE-2011-2883",
      "url": "https://www.cve.org/CVERecord?id=CVE-2011-2883"
    }
  ],
  "links": [],
  "reference": "CERTA-2011-AVI-396",
  "revisions": [
    {
      "description": "version initiale.",
      "revision_date": "2011-07-19T00:00:00.000000"
    },
    {
      "description": "ajout des r\u00e9f\u00e9rences CVE.",
      "revision_date": "2011-07-29T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
    }
  ],
  "summary": "Des vuln\u00e9rabilit\u00e9s dans \u003cspan class=\"textit\"\u003eCitrix Access Gateway\nPlug-in\u003c/span\u003e permettent d\u0027ex\u00e9cuter du code arbitraire \u00e0 distance.\n",
  "title": "Vuln\u00e9rabilit\u00e9s dans Citrix Access Gateway Plug-in",
  "vendor_advisories": [
    {
      "published_at": null,
      "title": "Bulletin de s\u00e9curit\u00e9 Citrix CTX129902 du 13 juillet 2011",
      "url": "http://support.citrix.com/article/CTX129902"
    }
  ]
}

CVE-2011-2883 (GCVE-0-2011-2883)

Vulnerability from cvelistv5 – Published: 2011-07-21 23:00 – Updated: 2024-09-17 01:42

Summary

The NSEPA.NsepaCtrl.1 ActiveX control in nsepa.ocx in Citrix Access Gateway Enterprise Edition 8.1 before 8.1-67.7, 9.0 before 9.0-70.5, and 9.1 before 9.1-96.4 attempts to validate signed DLLs by checking the certificate subject, not the signature, which allows man-in-the-middle attackers to execute arbitrary code via HTTP header data referencing a DLL that was signed with a crafted certificate.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

http://labs.idefense.com/intelligence/vulnerabili…

third-party-advisoryx_refsource_IDEFENSE

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T23:15:31.606Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "20110714 Citrix Access Gateway ActiveX Arbitrary Libary Loading Vulnerability",
            "tags": [
              "third-party-advisory",
              "x_refsource_IDEFENSE",
              "x_transferred"
            ],
            "url": "http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=928"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
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          "vendor": "n/a",
          "versions": [
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        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The NSEPA.NsepaCtrl.1 ActiveX control in nsepa.ocx in Citrix Access Gateway Enterprise Edition 8.1 before 8.1-67.7, 9.0 before 9.0-70.5, and 9.1 before 9.1-96.4 attempts to validate signed DLLs by checking the certificate subject, not the signature, which allows man-in-the-middle attackers to execute arbitrary code via HTTP header data referencing a DLL that was signed with a crafted certificate."
        }
      ],
      "problemTypes": [
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      "providerMetadata": {
        "dateUpdated": "2011-07-21T23:00:00Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "name": "20110714 Citrix Access Gateway ActiveX Arbitrary Libary Loading Vulnerability",
          "tags": [
            "third-party-advisory",
            "x_refsource_IDEFENSE"
          ],
          "url": "http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=928"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2011-2883",
          "STATE": "PUBLIC"
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        "affects": {
          "vendor": {
            "vendor_data": [
              {
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                      "version": {
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                          {
                            "version_value": "n/a"
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            }
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        },
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  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
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    "datePublished": "2011-07-21T23:00:00Z",
    "dateReserved": "2011-07-21T00:00:00Z",
    "dateUpdated": "2024-09-17T01:42:00.092Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

CVE-2011-2882 (GCVE-0-2011-2882)

Vulnerability from cvelistv5 – Published: 2011-07-21 23:00 – Updated: 2024-08-06 23:15

Summary

Stack-based buffer overflow in the NSEPA.NsepaCtrl.1 ActiveX control in nsepa.ocx in Citrix Access Gateway Enterprise Edition 8.1 before 8.1-67.7, 9.0 before 9.0-70.5, and 9.1 before 9.1-96.4 allows remote attackers to execute arbitrary code via crafted HTTP header data.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	http://securityreason.com/securityalert/8358	third-party-advisoryx_refsource_SREASON
	http://labs.idefense.com/intelligence/vulnerabili…	third-party-advisoryx_refsource_IDEFENSE

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T23:15:31.527Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "8358",
            "tags": [
              "third-party-advisory",
              "x_refsource_SREASON",
              "x_transferred"
            ],
            "url": "http://securityreason.com/securityalert/8358"
          },
          {
            "name": "20110714 Citrix Access Gateway ActiveX Stack Buffer Overflow Vulnerability",
            "tags": [
              "third-party-advisory",
              "x_refsource_IDEFENSE",
              "x_transferred"
            ],
            "url": "http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=929"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2011-07-14T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "Stack-based buffer overflow in the NSEPA.NsepaCtrl.1 ActiveX control in nsepa.ocx in Citrix Access Gateway Enterprise Edition 8.1 before 8.1-67.7, 9.0 before 9.0-70.5, and 9.1 before 9.1-96.4 allows remote attackers to execute arbitrary code via crafted HTTP header data."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2011-09-22T09:00:00",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "name": "8358",
          "tags": [
            "third-party-advisory",
            "x_refsource_SREASON"
          ],
          "url": "http://securityreason.com/securityalert/8358"
        },
        {
          "name": "20110714 Citrix Access Gateway ActiveX Stack Buffer Overflow Vulnerability",
          "tags": [
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            "x_refsource_IDEFENSE"
          ],
          "url": "http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=929"
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    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Tags

Taxonomy of the tags.

All sightings related to this event Export sightings related to this event

Sightings

Author	Source	Type	Date

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.

Action not permitted

CERTA-2011-AVI-396

Description

Solution

CVE-2011-2883 (GCVE-0-2011-2883)

CVE-2011-2882 (GCVE-0-2011-2882)

Tags

Sightings

Nomenclature