GSD-2001-0669

Vulnerability from gsd - Updated: 2023-12-13 01:19
Details
Various Intrusion Detection Systems (IDS) including (1) Cisco Secure Intrusion Detection System, (2) Cisco Catalyst 6000 Intrusion Detection System Module, (3) Dragon Sensor 4.x, (4) Snort before 1.8.1, (5) ISS RealSecure Network Sensor 5.x and 6.x before XPU 3.2, and (6) ISS RealSecure Server Sensor 5.5 and 6.0 for Windows, allow remote attackers to evade detection of HTTP attacks via non-standard "%u" Unicode encoding of ASCII characters in the requested URL.
Aliases
Aliases
CVE-2001-0669
To clipboard 

{
  "GSD": {
    "alias": "CVE-2001-0669",
    "description": "Various Intrusion Detection Systems (IDS) including (1) Cisco Secure Intrusion Detection System, (2) Cisco Catalyst 6000 Intrusion Detection System Module, (3) Dragon Sensor 4.x, (4) Snort before 1.8.1, (5) ISS RealSecure Network Sensor 5.x and 6.x before XPU 3.2, and (6) ISS RealSecure Server Sensor 5.5 and 6.0 for Windows, allow remote attackers to evade detection of HTTP attacks via non-standard \"%u\" Unicode encoding of ASCII characters in the requested URL.",
    "id": "GSD-2001-0669"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2001-0669"
      ],
      "details": "Various Intrusion Detection Systems (IDS) including (1) Cisco Secure Intrusion Detection System, (2) Cisco Catalyst 6000 Intrusion Detection System Module, (3) Dragon Sensor 4.x, (4) Snort before 1.8.1, (5) ISS RealSecure Network Sensor 5.x and 6.x before XPU 3.2, and (6) ISS RealSecure Server Sensor 5.5 and 6.0 for Windows, allow remote attackers to evade detection of HTTP attacks via non-standard \"%u\" Unicode encoding of ASCII characters in the requested URL.",
      "id": "GSD-2001-0669",
      "modified": "2023-12-13T01:19:01.181048Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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        "ID": "CVE-2001-0669",
        "STATE": "PUBLIC"
      },
      "affects": {
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          }
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            "name": "VU#548515",
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            "url": "http://www.kb.cert.org/vuls/id/548515"
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          {
            "name": "3292",
            "refsource": "BID",
            "url": "http://www.securityfocus.com/bid/3292"
          },
          {
            "name": "20010905 Cisco Secure Intrusion Detection System Signature Obfuscation Vulnerability",
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            "url": "http://www.cisco.com/warp/public/707/cisco-intrusion-detection-obfuscation-vuln-pub.shtml"
          },
          {
            "name": "20010905 Multiple Vendor IDS Unicode Bypass Vulnerability",
            "refsource": "ISS",
            "url": "http://xforce.iss.net/alerts/advise95.php"
          },
          {
            "name": "20010905 %u encoding IDS bypass vulnerability",
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    },
    "nvd.nist.gov": {
      "configurations": {
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            "cpe_match": [
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                "cpe23Uri": "cpe:2.3:a:cisco:secure_intrusion_detection_system:*:*:*:*:*:*:*:*",
                "cpe_name": [],
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                "cpe23Uri": "cpe:2.3:a:snort:snort:1.8.1:*:*:*:*:*:*:*",
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                "cpe23Uri": "cpe:2.3:a:cisco:catalyst_6000_intrusion_detection_system_module:*:*:*:*:*:*:*:*",
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          "ID": "CVE-2001-0669"
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        "description": {
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            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
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              "description": [
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                  "lang": "en",
                  "value": "NVD-CWE-Other"
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        },
        "references": {
          "reference_data": [
            {
              "name": "20010905 Multiple Vendor IDS Unicode Bypass Vulnerability",
              "refsource": "ISS",
              "tags": [
                "Patch",
                "Vendor Advisory"
              ],
              "url": "http://xforce.iss.net/alerts/advise95.php"
            },
            {
              "name": "20010905 Cisco Secure Intrusion Detection System Signature Obfuscation Vulnerability",
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              "tags": [
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              "url": "http://www.cisco.com/warp/public/707/cisco-intrusion-detection-obfuscation-vuln-pub.shtml"
            },
            {
              "name": "VU#548515",
              "refsource": "CERT-VN",
              "tags": [
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              "url": "http://www.kb.cert.org/vuls/id/548515"
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              "tags": [],
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            },
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            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 7.5,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "HIGH",
          "userInteractionRequired": false
        }
      },
      "lastModifiedDate": "2016-10-18T02:11Z",
      "publishedDate": "2001-10-30T05:00Z"
    }
  }
}


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  • 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.
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