CVE-2015-1798 (GCVE-0-2015-1798)

Vulnerability from cvelistv5 – Published: 2015-04-08 10:00 – Updated: 2024-08-06 04:54
VLAI?
Summary
The symmetric-key feature in the receive function in ntp_proto.c in ntpd in NTP 4.x before 4.2.8p2 requires a correct MAC only if the MAC field has a nonzero length, which makes it easier for man-in-the-middle attackers to spoof packets by omitting the MAC.
Severity ?
No CVSS data available.
CWE
  • n/a
Assigner
References
URL Tags
http://www.securitytracker.com/id/1032032 vdb-entryx_refsource_SECTRACK
http://www.ubuntu.com/usn/USN-2567-1 vendor-advisoryx_refsource_UBUNTU
http://www.kb.cert.org/vuls/id/374268 third-party-advisoryx_refsource_CERT-VN
http://marc.info/?l=bugtraq&m=143213867103400&w=2 vendor-advisoryx_refsource_HP
http://lists.fedoraproject.org/pipermail/package-… vendor-advisoryx_refsource_FEDORA
http://support.ntp.org/bin/view/Main/SecurityNoti… x_refsource_CONFIRM
https://kc.mcafee.com/corporate/index?page=conten… x_refsource_CONFIRM
http://lists.fedoraproject.org/pipermail/package-… vendor-advisoryx_refsource_FEDORA
http://lists.apple.com/archives/security-announce… vendor-advisoryx_refsource_APPLE
http://lists.opensuse.org/opensuse-updates/2015-0… vendor-advisoryx_refsource_SUSE
http://www.oracle.com/technetwork/topics/security… x_refsource_CONFIRM
https://security.gentoo.org/glsa/201509-01 vendor-advisoryx_refsource_GENTOO
http://tools.cisco.com/security/center/viewAlert.… vendor-advisoryx_refsource_CISCO
http://marc.info/?l=bugtraq&m=143213867103400&w=2 vendor-advisoryx_refsource_HP
http://www.mandriva.com/security/advisories?name=… vendor-advisoryx_refsource_MANDRIVA
http://www.oracle.com/technetwork/topics/security… x_refsource_CONFIRM
http://www.securityfocus.com/bid/73951 vdb-entryx_refsource_BID
http://support.apple.com/kb/HT204942 x_refsource_CONFIRM
http://rhn.redhat.com/errata/RHSA-2015-1459.html vendor-advisoryx_refsource_REDHAT
http://tools.cisco.com/security/center/content/Ci… vendor-advisoryx_refsource_CISCO
http://bugs.ntp.org/show_bug.cgi?id=2779 x_refsource_CONFIRM
http://www.debian.org/security/2015/dsa-3223 vendor-advisoryx_refsource_DEBIAN
Date Public ?
2015-04-07 00:00
Show details on NVD website
To clipboard 

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    "dateReserved": "2015-02-17T00:00:00.000Z",
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      "date": "2026-05-20",
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      "sourceIdentifier": "secalert@redhat.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-17\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2015-1798\",\"sourceIdentifier\":\"secalert@redhat.com\",\"published\":\"2015-04-08T10:59:04.610\",\"lastModified\":\"2026-05-06T22:30:45.220\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The symmetric-key feature in the receive function in ntp_proto.c in ntpd in NTP 4.x before 4.2.8p2 requires a correct MAC only if the MAC field has a nonzero length, which makes it easier for man-in-the-middle attackers to spoof packets by omitting the MAC.\"},{\"lang\":\"es\",\"value\":\"La caracter\u00edstica symmetric-key en la funci\u00f3n receive en ntp_proto.c en ntpd en NTP 4.x anterior a 4.2.8p2 requiere un MAC correcto \u00fanicamente si el campo MAC tiene una longitud que no sea cero, lo que facilita a atacantes man-in-the-middle falsificar paquetes mediante la omisi\u00f3n del MAC.\"}],\"metrics\":{\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:A/AC:H/Au:N/C:N/I:P/A:N\",\"baseScore\":1.8,\"accessVector\":\"ADJACENT_NETWORK\",\"accessComplexity\":\"HIGH\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"NONE\"},\"baseSeverity\":\"LOW\",\"exploitabilityScore\":3.2,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-17\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"4.2.7p444\",\"matchCriteriaId\":\"E538FCAE-3E2C-4EA8-A74F-ABF47652C15C\"}]}]}],\"references\":[{\"url\":\"http://bugs.ntp.org/show_bug.cgi?id=2779\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://lists.apple.com/archives/security-announce/2015/Jun/msg00002.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155863.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155864.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://lists.opensuse.org/opensuse-updates/2015-04/msg00052.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://marc.info/?l=bugtraq\u0026m=143213867103400\u0026w=2\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://rhn.redhat.com/errata/RHSA-2015-1459.html\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://support.apple.com/kb/HT204942\",\"source\":\"secalert@redhat.com\"},{\"url\":\"http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities\",\"source\":\"secalert@redhat.com\",\"tags\":[\"Vendor 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Resource\"]},{\"url\":\"http://www.mandriva.com/security/advisories?name=MDVSA-2015:202\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.securityfocus.com/bid/73951\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.securitytracker.com/id/1032032\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"http://www.ubuntu.com/usn/USN-2567-1\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10114\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://security.gentoo.org/glsa/201509-01\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
  }
}


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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.