FKIE_CVE-2003-0512
Vulnerability from fkie_nvd - Published: 2003-08-27 04:00 - Updated: 2025-04-03 01:03
Severity ?
Summary
Cisco IOS 12.2 and earlier generates a "% Login invalid" message instead of prompting for a password when an invalid username is provided, which allows remote attackers to identify valid usernames on the system and conduct brute force password guessing, as reported for the Aironet Bridge.
References
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:cisco:ios:12.0\\(24\\)s1:*:*:*:*:*:*:*",
"matchCriteriaId": "E3630462-F414-4D6B-8766-7CED5366C852",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.0\\(24.2\\)s:*:*:*:*:*:*:*",
"matchCriteriaId": "8C3E9A9A-B80F-43BD-8A63-762B60D6DBE3",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.2\\(11\\)ja1:*:*:*:*:*:*:*",
"matchCriteriaId": "3F7E536B-DD9A-4F46-B8C1-F29DC3298972",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.2\\(14.5\\):*:*:*:*:*:*:*",
"matchCriteriaId": "9802FF68-2932-42F6-B66F-545A59FB5EB7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.2\\(14.5\\)t:*:*:*:*:*:*:*",
"matchCriteriaId": "0E51D01E-F3CB-4413-985E-D72F71D7B423",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.2\\(15\\)zn:*:*:*:*:*:*:*",
"matchCriteriaId": "776DCDA0-839D-4EA2-8C0C-D28E897C1E71",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.2\\(15.1\\)s:*:*:*:*:*:*:*",
"matchCriteriaId": "2C4B7EF3-FD99-4CCD-B05A-807EE53A58BE",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:cisco:ios:12.2\\(16\\)b:*:*:*:*:*:*:*",
"matchCriteriaId": "CF6730C6-1387-4A52-8778-7FC144134AC6",
"vulnerable": true
},
{
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"matchCriteriaId": "AB1A7354-F886-427D-943A-388824100550",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Cisco IOS 12.2 and earlier generates a \"% Login invalid\" message instead of prompting for a password when an invalid username is provided, which allows remote attackers to identify valid usernames on the system and conduct brute force password guessing, as reported for the Aironet Bridge."
},
{
"lang": "es",
"value": "Cisco IOS 12.2 y anteriores genera un mensaje \"% Login Invalid\" en vez de solicitar una contrase\u00f1a cuando se suministra un nombre de usuario inv\u00e1lido, lo que permite a atacantes remotos identificar nombres de usuario v\u00e1lidos e intentar averiguar la contrase\u00f1a con m\u00e9todos de fuerza bruta, como ha informado Aironet Bridge."
}
],
"id": "CVE-2003-0512",
"lastModified": "2025-04-03T01:03:51.193",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 5.0,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2003-08-27T04:00:00.000",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Vendor Advisory"
],
"url": "http://archives.neohapsis.com/archives/vulnwatch/2003-q3/0056.html"
},
{
"source": "cve@mitre.org",
"url": "http://www.cisco.com/warp/public/707/cisco-sn-20030724-ios-enum.shtml"
},
{
"source": "cve@mitre.org",
"tags": [
"US Government Resource"
],
"url": "http://www.kb.cert.org/vuls/id/886796"
},
{
"source": "cve@mitre.org",
"url": "http://www.vigilante.com/inetsecurity/advisories/VIGILANTE-2003002.htm"
},
{
"source": "cve@mitre.org",
"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5824"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "http://archives.neohapsis.com/archives/vulnwatch/2003-q3/0056.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.cisco.com/warp/public/707/cisco-sn-20030724-ios-enum.shtml"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"US Government Resource"
],
"url": "http://www.kb.cert.org/vuls/id/886796"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.vigilante.com/inetsecurity/advisories/VIGILANTE-2003002.htm"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5824"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-310"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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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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