CVE-2004-0155

Status: ModifiedHigh (7.5)—

The KAME IKE Daemon Racoon, when authenticating a peer during Phase 1, validates the X.509 certificate but does not verify the RSA signature authentication, which allows remote attackers to establish unauthorized IP connections or conduct man-in-the-middle attacks using a valid, trusted X.509 certificate.

CVSS

Version: 2.0
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Base score: 7.5

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 3.62%
Percentile among all scored CVEs: 89
Score date: 10/6/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Kame — Racoon

CWEs

NVD-CWE-Other

References

Raw JSON (NVD)

Show

{
  "id": "CVE-2004-0155",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": true,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
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              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2004-06-01T04:00:00.000",
  "references": [
    {
      "url": "ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.10/SCOSA-2005.10.txt",
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    {
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    },
    {
      "url": "http://www.kb.cert.org/vuls/id/552398",
      "tags": [
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    {
      "url": "http://www.mandrakesecure.net/en/advisories/advisory.php?name=MDKSA-2004:069",
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    {
      "url": "http://www.mandriva.com/security/advisories?name=MDKSA-2004:027",
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    {
      "url": "http://www.redhat.com/support/errata/RHSA-2004-165.html",
      "tags": [
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "NVD-CWE-Other"
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The KAME IKE Daemon Racoon, when authenticating a peer during Phase 1, validates the X.509 certificate but does not verify the RSA signature authentication, which allows remote attackers to establish unauthorized IP connections or conduct man-in-the-middle attacks using a valid, trusted X.509 certificate."
    },
    {
      "lang": "es",
      "value": "El KAME IKE Daemon Racoon, cuando autentica a un semejante durante la Fase 1, valida el certificado X.509 pero no verifica la autenticación de firma RSA, lo que permite a atacantes remotos establecer conexiones IP  no autorizadas o relizar ataques del tipo \"hombre en el medio\" usando un certificado X.509 válido y de confianza."
    }
  ],
  "lastModified": "2026-06-16T22:05:03.447",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:kame:racoon:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E477F0A9-8027-435B-8F99-A15D1D74220A"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}