CVE-2007-0956 (GCVE-0-2007-0956)

Vulnerability from cvelistv5 – Published: 2007-04-06 01:00 – Updated: 2024-08-07 12:34
VLAI
Summary
The telnet daemon (telnetd) in MIT krb5 before 1.6.1 allows remote attackers to bypass authentication and gain system access via a username beginning with a '-' character, a similar issue to CVE-2007-0882.
Severity
No CVSS data available.
CWE
  • n/a
References
URL Tags
http://www.vupen.com/english/advisories/2007/1218 vdb-entryx_refsource_VUPEN
https://oval.cisecurity.org/repository/search/def… vdb-entrysignaturex_refsource_OVAL
ftp://patches.sgi.com/support/free/security/advis… vendor-advisoryx_refsource_SGI
http://www.securityfocus.com/archive/1/464590/100… mailing-listx_refsource_BUGTRAQ
http://secunia.com/advisories/24706 third-party-advisoryx_refsource_SECUNIA
http://secunia.com/advisories/24740 third-party-advisoryx_refsource_SECUNIA
http://www.redhat.com/support/errata/RHSA-2007-00… vendor-advisoryx_refsource_REDHAT
http://www.kb.cert.org/vuls/id/220816 third-party-advisoryx_refsource_CERT-VN
http://secunia.com/advisories/24786 third-party-advisoryx_refsource_SECUNIA
http://www.us-cert.gov/cas/techalerts/TA07-093B.html third-party-advisoryx_refsource_CERT
http://www.securityfocus.com/archive/1/464814/30/… mailing-listx_refsource_BUGTRAQ
http://www.debian.org/security/2007/dsa-1276 vendor-advisoryx_refsource_DEBIAN
http://secunia.com/advisories/24735 third-party-advisoryx_refsource_SECUNIA
https://exchange.xforce.ibmcloud.com/vulnerabilit… vdb-entryx_refsource_XF
http://web.mit.edu/kerberos/www/advisories/MITKRB… x_refsource_CONFIRM
http://www.securitytracker.com/id?1017848 vdb-entryx_refsource_SECTRACK
http://www.securityfocus.com/bid/23281 vdb-entryx_refsource_BID
http://secunia.com/advisories/24750 third-party-advisoryx_refsource_SECUNIA
http://secunia.com/advisories/24817 third-party-advisoryx_refsource_SECUNIA
http://secunia.com/advisories/24757 third-party-advisoryx_refsource_SECUNIA
http://secunia.com/advisories/24755 third-party-advisoryx_refsource_SECUNIA
http://www.vupen.com/english/advisories/2007/1249 vdb-entryx_refsource_VUPEN
http://sunsolve.sun.com/search/document.do?assetk… vendor-advisoryx_refsource_SUNALERT
http://lists.suse.com/archive/suse-security-annou… vendor-advisoryx_refsource_SUSE
http://secunia.com/advisories/24785 third-party-advisoryx_refsource_SECUNIA
http://www.mandriva.com/security/advisories?name=… vendor-advisoryx_refsource_MANDRIVA
http://www.ubuntu.com/usn/usn-449-1 vendor-advisoryx_refsource_UBUNTU
http://secunia.com/advisories/24736 third-party-advisoryx_refsource_SECUNIA
http://www.securityfocus.com/archive/1/464666/100… mailing-listx_refsource_BUGTRAQ
http://security.gentoo.org/glsa/glsa-200704-02.xml vendor-advisoryx_refsource_GENTOO
Date Public
2007-04-03 00:00
Show details on NVD website

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                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "cveTags": [],
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          {
            "lang": "en",
            "value": "The telnet daemon (telnetd) in MIT krb5 before 1.6.1 allows remote attackers to bypass authentication and gain system access via a username beginning with a \u0027-\u0027 character, a similar issue to CVE-2007-0882."
          },
          {
            "lang": "es",
            "value": "El demonio telnet (telnetd) en MIT krb5 anterior a 1.6.1 permite a atacantes remotos evitar la validaci\u00f3n y ganar accesos al sistema a trav\u00e9s de un nombre de usuario comenzando con el car\u00e1cter \u0027-\u0027, un asunto similar a CVE-2007-0882."
          }
        ],
        "id": "CVE-2007-0956",
        "lastModified": "2026-04-23T00:35:47.467",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "HIGH",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "COMPLETE",
                "baseScore": 10.0,
                "confidentialityImpact": "COMPLETE",
                "integrityImpact": "COMPLETE",
                "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
                "version": "2.0"
              },
              "exploitabilityScore": 10.0,
              "impactScore": 10.0,
              "obtainAllPrivilege": true,
              "obtainOtherPrivilege": false,
              "obtainUserPrivilege": false,
              "source": "nvd@nist.gov",
              "type": "Primary",
              "userInteractionRequired": false
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        },
        "published": "2007-04-06T01:19:00.000",
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            "source": "cve@mitre.org",
            "tags": [
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            "url": "ftp://patches.sgi.com/support/free/security/advisories/20070401-01-P.asc"
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          {
            "source": "cve@mitre.org",
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            "url": "http://lists.suse.com/archive/suse-security-announce/2007-Apr/0001.html"
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          {
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            "tags": [
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        ],
        "sourceIdentifier": "cve@mitre.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-306"
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            ],
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      }
    },
    "redhat_vex": {
      "aggregate_severity": "Critical",
      "current_release_date": "2025-11-21T13:20:14+00:00",
      "cve": "CVE-2007-0956",
      "id": "CVE-2007-0956",
      "initial_release_date": "2007-04-03T00:00:00+00:00",
      "product_status:fixed": "396",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Unauthorized access via krb5-telnet daemon",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2007/cve-2007-0956.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-02T13:10:48Z",
      "cve": "CVE-2007-0956",
      "id": "CVE-2007-0956",
      "initial_release_date": "2023-02-15T06:13:02Z",
      "product_status:recommended": "83",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2007-0956",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2007-0956.json",
      "version": "18"
    }
  }
}



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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.

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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.


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