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CVE-2008-1891 (GCVE-0-2008-1891)

Vulnerability from cvelistv5 – Published: 2008-04-18 22:00 – Updated: 2024-08-07 08:41
VLAI
Summary
Directory traversal vulnerability in WEBrick in Ruby 1.8.4 and earlier, 1.8.5 before 1.8.5-p231, 1.8.6 before 1.8.6-p230, 1.8.7 before 1.8.7-p22, and 1.9.0 before 1.9.0-2, when using NTFS or FAT filesystems, allows remote attackers to read arbitrary CGI files via a trailing (1) + (plus), (2) %2b (encoded plus), (3) . (dot), (4) %2e (encoded dot), or (5) %20 (encoded space) character in the URI, possibly related to the WEBrick::HTTPServlet::FileHandler and WEBrick::HTTPServer.new functionality and the :DocumentRoot option.
Severity
No CVSS data available.
CWE
  • n/a
Assigner
References
URL Tags
http://secunia.com/advisories/29794 third-party-advisoryx_refsource_SECUNIA
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://www.mandriva.com/security/advisories?name=… vendor-advisoryx_refsource_MANDRIVA
https://exchange.xforce.ibmcloud.com/vulnerabilit… vdb-entryx_refsource_XF
http://secunia.com/advisories/31687 third-party-advisoryx_refsource_SECUNIA
http://aluigi.altervista.org/adv/webrickcgi-adv.txt x_refsource_MISC
https://www.redhat.com/archives/fedora-package-an… vendor-advisoryx_refsource_FEDORA
http://www.mandriva.com/security/advisories?name=… vendor-advisoryx_refsource_MANDRIVA
http://secunia.com/advisories/30831 third-party-advisoryx_refsource_SECUNIA
http://www.vupen.com/english/advisories/2008/1245… vdb-entryx_refsource_VUPEN
http://www.ruby-lang.org/en/news/2008/06/20/arbit… x_refsource_CONFIRM
Date Public
2008-04-15 00:00
Show details on NVD website
To clipboard 

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            "value": "Directory traversal vulnerability in WEBrick in Ruby 1.8.4 and earlier, 1.8.5 before 1.8.5-p231, 1.8.6 before 1.8.6-p230, 1.8.7 before 1.8.7-p22, and 1.9.0 before 1.9.0-2, when using NTFS or FAT filesystems, allows remote attackers to read arbitrary CGI files via a trailing (1) + (plus), (2) %2b (encoded plus), (3) . (dot), (4) %2e (encoded dot), or (5) %20 (encoded space) character in the URI, possibly related to the WEBrick::HTTPServlet::FileHandler and WEBrick::HTTPServer.new functionality and the :DocumentRoot option."
          },
          {
            "lang": "es",
            "value": "Una vulnerabilidad de salto de directorio en WEBrick en Ruby versi\u00f3n 1.8.4 y anteriores, versi\u00f3n 1.8.5 anterior a 1.8.5-p231, versi\u00f3n 1.8.6 anterior a 1.8.6-p230, versi\u00f3n 1.8.7 anterior a 1.8.7-p22, y versi\u00f3n 1.9.0 anterior a 1.9.0-2, cuando se utilizan sistemas de archivos NTFS o FAT, permite a los atacantes remotos leer archivos CGI arbitrarios por medio de un trailing (1) + (m\u00e1s), (2) %2b (m\u00e1s codificado), (3) . (punto), (4) %2e (punto codificado) o (5) %20 (espacio codificado) en el URI, posiblemente relacionado con la funci\u00f3n WEBrick::HTTPServlet::FileHandler y WEBrick::HTTPServer.new y la opci\u00f3n :DocumentRoot."
          }
        ],
        "id": "CVE-2008-1891",
        "lastModified": "2026-04-23T00:35:47.467",
        "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": "2008-04-18T22:05:00.000",
        "references": [
          {
            "source": "cve@mitre.org",
            "url": "http://aluigi.altervista.org/adv/webrickcgi-adv.txt"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2008-08/msg00006.html"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "http://secunia.com/advisories/29794"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://secunia.com/advisories/30831"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://secunia.com/advisories/31687"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2008:140"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2008:141"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://www.ruby-lang.org/en/news/2008/06/20/arbitrary-code-execution-vulnerabilities/"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://www.vupen.com/english/advisories/2008/1245/references"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/41824"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://www.redhat.com/archives/fedora-package-announce/2008-June/msg00937.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://aluigi.altervista.org/adv/webrickcgi-adv.txt"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2008-08/msg00006.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "http://secunia.com/advisories/29794"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://secunia.com/advisories/30831"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://secunia.com/advisories/31687"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2008:140"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2008:141"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.ruby-lang.org/en/news/2008/06/20/arbitrary-code-execution-vulnerabilities/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.vupen.com/english/advisories/2008/1245/references"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/41824"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://www.redhat.com/archives/fedora-package-announce/2008-June/msg00937.html"
          }
        ],
        "sourceIdentifier": "cve@mitre.org",
        "vendorComments": [
          {
            "comment": "Red Hat is aware of this issue and is tracking it via the following bug: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=CVE-2008-1891\n\nThe risks associated with fixing this flaw outweigh the benefits of the fix. Red Hat does not plan to fix this flaw in Red Hat Enterprise Linux.",
            "lastModified": "2009-06-10T00:00:00",
            "organization": "Red Hat"
          }
        ],
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-22"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-05-18T10:07:26+00:00",
      "cve": "CVE-2008-1891",
      "id": "CVE-2008-1891",
      "initial_release_date": "2008-04-15T00:00:00+00:00",
      "product_status:fixed": "12",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "ruby: WEBrick CGI source disclosure",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2008/cve-2008-1891.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2023-12-09T03:38:56Z",
      "cve": "CVE-2008-1891",
      "id": "CVE-2008-1891",
      "initial_release_date": "2023-02-15T06:08:28Z",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2008-1891",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2008-1891.json",
      "version": "4"
    }
  }
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.