FKIE_CVE-2009-0654

Vulnerability from fkie_nvd - Published: 2009-02-20 19:30 - Updated: 2025-04-09 00:30
Severity ?
Summary
Tor 0.2.0.28, and probably 0.2.0.34 and earlier, allows remote attackers, with control of an entry router and an exit router, to confirm that a sender and receiver are communicating via vectors involving (1) replaying, (2) modifying, (3) inserting, or (4) deleting a single cell, and then observing cell recognition errors at the exit router. NOTE: the vendor disputes the significance of this issue, noting that the product's design "accepted end-to-end correlation as an attack that is too expensive to solve."
References
cve@mitre.orghttp://blog.torproject.org/blog/one-cell-enough
cve@mitre.orghttp://www.blackhat.com/html/bh-dc-09/bh-dc-09-archives.html#Fu
cve@mitre.orghttp://www.blackhat.com/presentations/bh-dc-09/Fu/BlackHat-DC-09-Fu-Break-Tors-Anonymity.pdfExploit
af854a3a-2127-422b-91ae-364da2661108http://blog.torproject.org/blog/one-cell-enough
af854a3a-2127-422b-91ae-364da2661108http://www.blackhat.com/html/bh-dc-09/bh-dc-09-archives.html#Fu
af854a3a-2127-422b-91ae-364da2661108http://www.blackhat.com/presentations/bh-dc-09/Fu/BlackHat-DC-09-Fu-Break-Tors-Anonymity.pdfExploit
Impacted products
Vendor Product Version
tor tor *
tor tor 0.2.0.1
tor tor 0.2.0.2
tor tor 0.2.0.3
tor tor 0.2.0.4
tor tor 0.2.0.5
tor tor 0.2.0.6
tor tor 0.2.0.7
tor tor 0.2.0.8
tor tor 0.2.0.9
tor tor 0.2.0.10
tor tor 0.2.0.11
tor tor 0.2.0.12
tor tor 0.2.0.13
tor tor 0.2.0.14
tor tor 0.2.0.15
tor tor 0.2.0.16
tor tor 0.2.0.17
tor tor 0.2.0.18
tor tor 0.2.0.19
tor tor 0.2.0.20
tor tor 0.2.0.21
tor tor 0.2.0.22
tor tor 0.2.0.23
tor tor 0.2.0.24
tor tor 0.2.0.25
tor tor 0.2.0.26
tor tor 0.2.0.27
tor tor 0.2.0.28
tor tor 0.2.0.29
tor tor 0.2.0.30
tor tor 0.2.0.31
tor tor 0.2.0.32
To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Tor 0.2.0.28, and probably 0.2.0.34 and earlier, allows remote attackers, with control of an entry router and an exit router, to confirm that a sender and receiver are communicating via vectors involving (1) replaying, (2) modifying, (3) inserting, or (4) deleting a single cell, and then observing cell recognition errors at the exit router.  NOTE: the vendor disputes the significance of this issue, noting that the product\u0027s design \"accepted end-to-end correlation as an attack that is too expensive to solve.\""
    },
    {
      "lang": "es",
      "value": "Tor v0.2.0.28, y posiblemente v0.2.0.34 y anteriores, permite a atacantes remotos, con el control de un enrutador de salida y otro de entrada, confirmar que un receptor y un remitente estan comunicandose a traves de los vectores (1) replaying, (2) modifying, (3) inserting, or (4) deleting a single cell, y despues observar los errores de reconocimiento de celula en el enrutador de salida. NOTA: El vendedor no esta de acuerda con la importancia de este hecho."
    }
  ],
  "id": "CVE-2009-0654",
  "lastModified": "2025-04-09T00:30:58.490",
  "metrics": {
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        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "HIGH",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.1,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:H/Au:N/C:P/I:P/A:P",
          "version": "2.0"
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        "exploitabilityScore": 4.9,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
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        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
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  "published": "2009-02-20T19:30:00.313",
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      "source": "cve@mitre.org",
      "url": "http://blog.torproject.org/blog/one-cell-enough"
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}


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  • 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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