certfr_alerte - CERTA-2009-ALE-015

CERTA-2009-ALE-015

Vulnerability from certfr_alerte - Published: - Updated:

Deux vulnérabilités présentes dans le serveur FTP de Microsoft IIS permettent à un utilisateur distant de provoquer un déni de service ou d'exécuter du code arbitraire.

Description

Une vulnérabilité (CVE-2009-3023), de type débordement de mémoire, est présente dans le serveur FTP de Microsoft IIS. Elle permet à un utilisateur distant malintentionné de provoquer un déni de service sur les versions 5.1 et 6.0 et 7.0 ou d'exécuter du code arbitraire sur la version 5.0 du serveur vulnérable.

Pour exploiter cette faille, l'attaquant doit disposer d'un compte ayant les droits d'écriture sur le serveur afin d'y créer des répertoires particuliers.

La deuxième vulnérabilité (CVE-2009-2521), due à une saturation des ressources de la pile, permet à une personne malintentionnée authentifiée de provoquer un déni de service au moyen d'une commande spécifique.

Du code permettant l'exploitation de ces vulnérabilités est disponible sur l'Internet.

Contournement provisoire

Pour la première vulnérabilité :

Désactiver le support de l'écriture de fichiers dans la configuration du serveur FTP de Microsoft IIS pour les utilisateurs non identifiés (compte anonymous) ;
supprimer la permission NTFS de créer des répertoires pour les utilisateurs du service ;

Pour les deux vulnérabilités :

restreindre l'accès du serveur FTP aux seules personnes de confiance ;
désactiver le service FTP si ce dernier n'est pas nécessaire ;
utiliser un serveur FTP alternatif.

Les utilisateurs de Microsoft Internet Information Services 7.0 peuvent également mettre à jour le service FTP en version 7.5.

Solution

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

Microsoft Internet Information Services (IIS) 5.0 (FTP Service 5.0) ;
Microsoft Internet Information Services (IIS) 5.1 (FTP Service 5.1) ;
Microsoft Internet Information Services (IIS) 6.0 (FTP Service 6.0) ;
Microsoft Internet Information Services (IIS) 7.0 (FTP Service 7.0).

Microsoft IIS 7.5 n'est pas affecté. Les utilisateurs de Microsoft IIS 7.0 avec FTP Service 7.5 ne sont pas affectés.

Impacted products

	Vendor	Product	Description

References

Title

Publication Time

Tags

Bulletin de sécurité VU#276653 de l'US-CERT	None	vendor-advisory
Bulletin de sécurité Microsoft 975191 du 01 septembre 2009 :	-	other
Bulletin de sécurité Microsoft MS09-053 du 13 octobre 2009 :	-	other
Document du CERTA CERTA-2009-AVI-433 du 14 octobre 2009 :	-	other
Note de vulnérabilité de l'US-CERT VU#276653 du 31 août 2009 :	-	other
Bulletin de sécurité Microsoft MS09-053 du 13 octobre 2009 :	-	other

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JSON

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{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [],
  "affected_systems_content": "\u003cUL\u003e    \u003cLI\u003e\u003cSPAN class=\"textit\"\u003eMicrosoft Internet Information    Services\u003c/SPAN\u003e (IIS) 5.0 (FTP Service 5.0) ;\u003c/LI\u003e    \u003cLI\u003e\u003cSPAN class=\"textit\"\u003eMicrosoft Internet Information    Services\u003c/SPAN\u003e (IIS) 5.1 (FTP Service 5.1) ;\u003c/LI\u003e    \u003cLI\u003e\u003cSPAN class=\"textit\"\u003eMicrosoft Internet Information    Services\u003c/SPAN\u003e (IIS) 6.0 (FTP Service 6.0) ;\u003c/LI\u003e    \u003cLI\u003e\u003cSPAN class=\"textit\"\u003eMicrosoft Internet Information    Services\u003c/SPAN\u003e (IIS) 7.0 (FTP Service 7.0).\u003c/LI\u003e  \u003c/UL\u003e  \u003cP\u003e\u003cSPAN class=\"textit\"\u003eMicrosoft IIS\u003c/SPAN\u003e 7.5 n\u0027est pas  affect\u00e9. Les utilisateurs de \u003cSPAN class=\"textit\"\u003eMicrosoft  IIS\u003c/SPAN\u003e 7.0 avec FTP Service 7.5 ne sont pas affect\u00e9s.\u003c/P\u003e",
  "closed_at": "2009-10-14",
  "content": "## Description\n\nUne vuln\u00e9rabilit\u00e9 (CVE-2009-3023), de type d\u00e9bordement de m\u00e9moire, est\npr\u00e9sente dans le serveur FTP de Microsoft IIS. Elle permet \u00e0 un\nutilisateur distant malintentionn\u00e9 de provoquer un d\u00e9ni de service sur\nles versions 5.1 et 6.0 et 7.0 ou d\u0027ex\u00e9cuter du code arbitraire sur la\nversion 5.0 du serveur vuln\u00e9rable.\n\nPour exploiter cette faille, l\u0027attaquant doit disposer d\u0027un compte ayant\nles droits d\u0027\u00e9criture sur le serveur afin d\u0027y cr\u00e9er des r\u00e9pertoires\nparticuliers.\n\nLa deuxi\u00e8me vuln\u00e9rabilit\u00e9 (CVE-2009-2521), due \u00e0 une saturation des\nressources de la pile, permet \u00e0 une personne malintentionn\u00e9e\nauthentifi\u00e9e de provoquer un d\u00e9ni de service au moyen d\u0027une commande\nsp\u00e9cifique.\n\nDu code permettant l\u0027exploitation de ces vuln\u00e9rabilit\u00e9s est disponible\nsur l\u0027Internet.\n\n## Contournement provisoire\n\nPour la premi\u00e8re vuln\u00e9rabilit\u00e9 :\n\n-   D\u00e9sactiver le support de l\u0027\u00e9criture de fichiers dans la\n    configuration du serveur FTP de Microsoft IIS pour les utilisateurs\n    non identifi\u00e9s (compte anonymous) ;\n-   supprimer la permission NTFS de cr\u00e9er des r\u00e9pertoires pour les\n    utilisateurs du service ;\n\nPour les deux vuln\u00e9rabilit\u00e9s :\n\n-   restreindre l\u0027acc\u00e8s du serveur FTP aux seules personnes de confiance\n    ;\n-   d\u00e9sactiver le service FTP si ce dernier n\u0027est pas n\u00e9cessaire ;\n-   utiliser un serveur FTP alternatif.\n\nLes utilisateurs de Microsoft Internet Information Services 7.0 peuvent\n\u00e9galement mettre \u00e0 jour le service FTP en version 7.5.\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-2009-2521",
      "url": "https://www.cve.org/CVERecord?id=CVE-2009-2521"
    },
    {
      "name": "CVE-2009-3023",
      "url": "https://www.cve.org/CVERecord?id=CVE-2009-3023"
    }
  ],
  "links": [
    {
      "title": "Bulletin de s\u00e9curit\u00e9 Microsoft 975191 du 01 septembre 2009    :",
      "url": "http://www.microsoft.com/technet/security/advisory/975191.mspx"
    },
    {
      "title": "Bulletin de s\u00e9curit\u00e9 Microsoft MS09-053 du 13 octobre 2009    :",
      "url": "http://www.microsoft.com/technet/security/Bulletin/MS09-053.mspx"
    },
    {
      "title": "Document du CERTA CERTA-2009-AVI-433 du 14 octobre 2009 :",
      "url": "http://www.certa.ssi.gouv.fr/site/CERTA-2009-AVI-433/index.html"
    },
    {
      "title": "Note de vuln\u00e9rabilit\u00e9 de l\u0027US-CERT VU#276653 du 31 ao\u00fbt    2009 :",
      "url": "http://www.kb.cert.org/vuls/id/276653"
    },
    {
      "title": "Bulletin de s\u00e9curit\u00e9 Microsoft MS09-053 du 13 octobre 2009    :",
      "url": "http://www.microsoft.com/france/technet/security/Bulletin/MS09-053.mspx"
    }
  ],
  "reference": "CERTA-2009-ALE-015",
  "revisions": [
    {
      "description": "version initiale.",
      "revision_date": "2009-09-01T00:00:00.000000"
    },
    {
      "description": "mise \u00e0 jour des contournements provisoires, ajout des r\u00e9f\u00e9rences au bulletin Microsoft et au CVE.",
      "revision_date": "2009-09-02T00:00:00.000000"
    },
    {
      "description": "ajout de la r\u00e9f\u00e9rence CVE-2009-2521, ajout de IIS 7.0 dans la liste des produits vuln\u00e9rables.",
      "revision_date": "2009-09-04T00:00:00.000000"
    },
    {
      "description": "mise \u00e0 jour des produits affect\u00e9s, de la description des vuln\u00e9rabilit\u00e9s et ajout d\u0027un contournement provisoire.",
      "revision_date": "2009-09-07T00:00:00.000000"
    },
    {
      "description": "ajout de la solution et des r\u00e9f\u00e9rences correspondantes.",
      "revision_date": "2009-10-14T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "D\u00e9ni de service \u00e0 distance"
    },
    {
      "description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
    }
  ],
  "summary": "Deux vuln\u00e9rabilit\u00e9s pr\u00e9sentes dans le serveur FTP de \u003cspan\nclass=\"textit\"\u003eMicrosoft IIS\u003c/span\u003e permettent \u00e0 un utilisateur distant\nde provoquer un d\u00e9ni de service ou d\u0027ex\u00e9cuter du code arbitraire.\n",
  "title": "Vuln\u00e9rabilit\u00e9s du serveur FTP de Microsoft IIS",
  "vendor_advisories": [
    {
      "published_at": null,
      "title": "Bulletin de s\u00e9curit\u00e9 VU#276653 de l\u0027US-CERT",
      "url": null
    }
  ]
}

CVE-2009-3023 (GCVE-0-2009-3023)

Vulnerability from cvelistv5 – Published: 2009-08-31 20:00 – Updated: 2024-08-07 06:14

Summary

Buffer overflow in the FTP Service in Microsoft Internet Information Services (IIS) 5.0 through 6.0 allows remote authenticated users to execute arbitrary code via a crafted NLST (NAME LIST) command that uses wildcards, leading to memory corruption, aka "IIS FTP Service RCE and DoS Vulnerability."

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	http://support.microsoft.com/default.aspx?scid=kb…	vendor-advisoryx_refsource_MSKB
	https://oval.cisecurity.org/repository/search/def…	vdb-entrysignaturex_refsource_OVAL
	http://www.securityfocus.com/bid/36189	vdb-entryx_refsource_BID
	http://www.exploit-db.com/exploits/9541	exploitx_refsource_EXPLOIT-DB
	http://www.us-cert.gov/cas/techalerts/TA09-286A.html	third-party-advisoryx_refsource_CERT
	http://www.vupen.com/english/advisories/2009/2481	vdb-entryx_refsource_VUPEN
	https://docs.microsoft.com/en-us/security-updates…	vendor-advisoryx_refsource_MS
	http://www.exploit-db.com/exploits/9559	exploitx_refsource_EXPLOIT-DB
	http://www.kb.cert.org/vuls/id/276653	third-party-advisoryx_refsource_CERT-VN

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JSON

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CVE-2009-2521 (GCVE-0-2009-2521)

Vulnerability from cvelistv5 – Published: 2009-09-04 10:00 – Updated: 2024-08-07 05:52

Summary

Stack consumption vulnerability in the FTP Service in Microsoft Internet Information Services (IIS) 5.0 through 7.0 allows remote authenticated users to cause a denial of service (daemon crash) via a list (ls) -R command containing a wildcard that references a subdirectory, followed by a .. (dot dot), aka "IIS FTP Service DoS Vulnerability."

Severity ?

No CVSS data available.

CWE

Assigner

microsoft

References

URL

Tags

	https://oval.cisecurity.org/repository/search/def…	vdb-entrysignaturex_refsource_OVAL
	http://support.microsoft.com/default.aspx?scid=kb…	vendor-advisoryx_refsource_MSKB
	http://www.us-cert.gov/cas/techalerts/TA09-286A.html	third-party-advisoryx_refsource_CERT
	https://docs.microsoft.com/en-us/security-updates…	vendor-advisoryx_refsource_MS
	http://archives.neohapsis.com/archives/fulldisclo…	mailing-listx_refsource_FULLDISC

Show details on NVD website

JSON

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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-2009-ALE-015

Description

Contournement provisoire

Solution

CVE-2009-3023 (GCVE-0-2009-3023)

CVE-2009-2521 (GCVE-0-2009-2521)

Tags

Sightings

Nomenclature