CERTA-2003-AVI-079
Vulnerability from certfr_avis - Published: - Updated:None
Description
Selon Cisco, un utilisateur non autorisé peut obtenir un accès à un système vulnérable en local (via la console) ou à distance (accès ssh ou telnet) sans connaissance d'un mot de passe valide.
Il est également possible de passer en mode privilégié ("enable") et modifier ainsi la configuration du commutateur.
La vulnérabilité ne peut être exploitée que sur des configurations utilisant une authentification locale.
Contournement provisoire
Il est possible de spécifier les machines pouvant accéder aux services ssh et telnet du commutateur au moyen d'une liste de controle d'accès :
set ip permit <adresse> <masque> telnet
set ip permit <adresse> <masque> ssh
set ip permit enable
Solution
La version 7.6(1) de Cisco Catalyst OS corrige cette vulnérabilité.
Les commutateurs Cisco Catalyst 4000, 6000 et 6500 utilisant Catalyst OS version 7.5(1).
Impacted products
| Vendor | Product | Description |
|---|
References
| Title | Publication Time | Tags | ||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [],
"affected_systems_content": "\u003cp\u003eLes commutateurs Cisco Catalyst 4000, 6000 et 6500 utilisant Catalyst OS version 7.5(1).\u003c/p\u003e",
"content": "## Description\n\nSelon Cisco, un utilisateur non autoris\u00e9 peut obtenir un acc\u00e8s \u00e0 un\nsyst\u00e8me vuln\u00e9rable en local (via la console) ou \u00e0 distance (acc\u00e8s ssh ou\ntelnet) sans connaissance d\u0027un mot de passe valide.\n\nIl est \u00e9galement possible de passer en mode privil\u00e9gi\u00e9 (\"enable\") et\nmodifier ainsi la configuration du commutateur.\n\n \nLa vuln\u00e9rabilit\u00e9 ne peut \u00eatre exploit\u00e9e que sur des configurations\nutilisant une authentification locale.\n\n## Contournement provisoire\n\nIl est possible de sp\u00e9cifier les machines pouvant acc\u00e9der aux services\nssh et telnet du commutateur au moyen d\u0027une liste de controle d\u0027acc\u00e8s :\n\n set ip permit \u003cadresse\u003e \u003cmasque\u003e telnet\n set ip permit \u003cadresse\u003e \u003cmasque\u003e ssh\n set ip permit enable\n\n## Solution\n\nLa version 7.6(1) de Cisco Catalyst OS corrige cette vuln\u00e9rabilit\u00e9.\n",
"cves": [],
"links": [
{
"title": "Avis de s\u00e9curit\u00e9 de Cisco \"Cisco Catalyst enable password bypass vulnerability\" :",
"url": "http://www.cisco.com/warp/public/707/cisco-sa-20030424-catos.shtml"
}
],
"reference": "CERTA-2003-AVI-079",
"revisions": [
{
"description": "version initiale.",
"revision_date": "2003-04-25T00:00:00.000000"
}
],
"risks": [
{
"description": "Acc\u00e8s non autoris\u00e9"
},
{
"description": "\u00c9l\u00e9vation de privil\u00e8ges"
}
],
"summary": null,
"title": "Vuln\u00e9rabilit\u00e9 des commutateurs Catalyst de Cisco",
"vendor_advisories": [
{
"published_at": null,
"title": "Avis Cisco",
"url": null
}
]
}
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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.
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