cnvd - cnvd-2017-21024

cnvd-2017-21024

Vulnerability from cnvd

Title: NTP 'ntp-keygen.c'可预测随机数生成漏洞

Description:

NTP（Network Time Protocol，网络时间协议）是一款通过网络同步计算机时钟的协议。

NTP中存在可预测随机数生成漏洞。攻击者可利用该漏洞猜测出MD5密钥，欺骗客户端或服务器。

Severity: 中

Patch Name: NTP 'ntp-keygen.c'可预测随机数生成漏洞的补丁

Patch Description:

NTP（Network Time Protocol，网络时间协议）是一款通过网络同步计算机时钟的协议。

NTP中存在可预测随机数生成漏洞。攻击者可利用该漏洞猜测出MD5密钥，欺骗客户端或服务器。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description:

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://bugs.ntp.org/show_bug.cgi?id=2797

Reference: http://www.securityfocus.com/bid/74045

Impacted products

Name
Ntp Ntp

Show details on source website

JSON

To clipboard

{
  "bids": {
    "bid": {
      "bidNumber": "74045"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-3405",
      "cveUrl": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-3405"
    }
  },
  "description": "NTP\uff08Network Time Protocol\uff0c\u7f51\u7edc\u65f6\u95f4\u534f\u8bae\uff09\u662f\u4e00\u6b3e\u901a\u8fc7\u7f51\u7edc\u540c\u6b65\u8ba1\u7b97\u673a\u65f6\u949f\u7684\u534f\u8bae\u3002\r\n\r\nNTP\u4e2d\u5b58\u5728\u53ef\u9884\u6d4b\u968f\u673a\u6570\u751f\u6210\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u731c\u6d4b\u51faMD5\u5bc6\u94a5\uff0c\u6b3a\u9a97\u5ba2\u6237\u7aef\u6216\u670d\u52a1\u5668\u3002",
  "discovererName": "Martin Prpic",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://bugs.ntp.org/show_bug.cgi?id=2797",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-21024",
  "openTime": "2017-08-15",
  "patchDescription": "NTP\uff08Network Time Protocol\uff0c\u7f51\u7edc\u65f6\u95f4\u534f\u8bae\uff09\u662f\u4e00\u6b3e\u901a\u8fc7\u7f51\u7edc\u540c\u6b65\u8ba1\u7b97\u673a\u65f6\u949f\u7684\u534f\u8bae\u3002\r\n\r\nNTP\u4e2d\u5b58\u5728\u53ef\u9884\u6d4b\u968f\u673a\u6570\u751f\u6210\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u731c\u6d4b\u51faMD5\u5bc6\u94a5\uff0c\u6b3a\u9a97\u5ba2\u6237\u7aef\u6216\u670d\u52a1\u5668\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "NTP \u0027ntp-keygen.c\u0027\u53ef\u9884\u6d4b\u968f\u673a\u6570\u751f\u6210\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Ntp Ntp"
  },
  "referenceLink": "http://www.securityfocus.com/bid/74045",
  "serverity": "\u4e2d",
  "submitTime": "2017-08-11",
  "title": "NTP \u0027ntp-keygen.c\u0027\u53ef\u9884\u6d4b\u968f\u673a\u6570\u751f\u6210\u6f0f\u6d1e"
}

CVE-2015-3405 (GCVE-0-2015-3405)

Vulnerability from cvelistv5

Published

2017-08-09 16:00

Modified

2024-08-06 05:47

Severity ?

CWE

Summary

ntp-keygen in ntp 4.2.8px before 4.2.8p2-RC2 and 4.3.x before 4.3.12 does not generate MD5 keys with sufficient entropy on big endian machines when the lowest order byte of the temp variable is between 0x20 and 0x7f and not #, which might allow remote attackers to obtain the value of generated MD5 keys via a brute force attack with the 93 possible keys.

References

▼	URL	Tags
	http://lists.fedoraproject.org/pipermail/package-announce/2015-April/156248.html	vendor-advisory, x_refsource_FEDORA
	http://rhn.redhat.com/errata/RHSA-2015-2231.html	vendor-advisory, x_refsource_REDHAT
	https://bugzilla.redhat.com/show_bug.cgi?id=1210324	x_refsource_CONFIRM
	http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html	x_refsource_CONFIRM
	http://www.debian.org/security/2015/dsa-3388	vendor-advisory, x_refsource_DEBIAN
	http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00000.html	vendor-advisory, x_refsource_SUSE
	http://www.securityfocus.com/bid/74045	vdb-entry, x_refsource_BID
	http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html	x_refsource_CONFIRM
	https://bugs.ntp.org/show_bug.cgi?id=2797	x_refsource_CONFIRM
	http://rhn.redhat.com/errata/RHSA-2015-1459.html	vendor-advisory, x_refsource_REDHAT
	https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03886en_us	x_refsource_CONFIRM
	http://bk1.ntp.org/ntp-stable/?PAGE=patch&REV=55199296N2gFqH1Hm5GOnhrk9Ypygg	x_refsource_CONFIRM
	http://www.debian.org/security/2015/dsa-3223	vendor-advisory, x_refsource_DEBIAN
	http://www.openwall.com/lists/oss-security/2015/04/23/14	mailing-list, x_refsource_MLIST

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T05:47:57.539Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-April/156248.html"
          },
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            "name": "RHSA-2015:2231",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "http://rhn.redhat.com/errata/RHSA-2015-2231.html"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
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              "x_transferred"
            ],
            "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html"
          },
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            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "http://www.debian.org/security/2015/dsa-3388"
          },
          {
            "name": "SUSE-SU-2015:1173",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00000.html"
          },
          {
            "name": "74045",
            "tags": [
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              "x_refsource_BID",
              "x_transferred"
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            "url": "http://www.securityfocus.com/bid/74045"
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            "tags": [
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            "tags": [
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            ],
            "url": "http://bk1.ntp.org/ntp-stable/?PAGE=patch\u0026REV=55199296N2gFqH1Hm5GOnhrk9Ypygg"
          },
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            "tags": [
              "vendor-advisory",
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            ],
            "url": "http://www.debian.org/security/2015/dsa-3223"
          },
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            "name": "[oss-security] 20150423 Re: CVE request: ntp-keygen may generate non-random symmetric keys on big-endian systems",
            "tags": [
              "mailing-list",
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              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2015/04/23/14"
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        "title": "CVE Program Container"
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    "cna": {
      "affected": [
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          "vendor": "n/a",
          "versions": [
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      ],
      "datePublic": "2015-03-30T00:00:00",
      "descriptions": [
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        }
      ],
      "problemTypes": [
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      "providerMetadata": {
        "dateUpdated": "2018-08-28T09:57:01",
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          "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-April/156248.html"
        },
        {
          "name": "RHSA-2015:2231",
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            "x_refsource_REDHAT"
          ],
          "url": "http://rhn.redhat.com/errata/RHSA-2015-2231.html"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1210324"
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            "x_refsource_CONFIRM"
          ],
          "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html"
        },
        {
          "name": "DSA-3388",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "http://www.debian.org/security/2015/dsa-3388"
        },
        {
          "name": "SUSE-SU-2015:1173",
          "tags": [
            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00000.html"
        },
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          "tags": [
            "x_refsource_CONFIRM"
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          "url": "https://bugs.ntp.org/show_bug.cgi?id=2797"
        },
        {
          "name": "RHSA-2015:1459",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
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          "url": "http://rhn.redhat.com/errata/RHSA-2015-1459.html"
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          "url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbhf03886en_us"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://bk1.ntp.org/ntp-stable/?PAGE=patch\u0026REV=55199296N2gFqH1Hm5GOnhrk9Ypygg"
        },
        {
          "name": "DSA-3223",
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          "url": "http://www.debian.org/security/2015/dsa-3223"
        },
        {
          "name": "[oss-security] 20150423 Re: CVE request: ntp-keygen may generate non-random symmetric keys on big-endian systems",
          "tags": [
            "mailing-list",
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          ],
          "url": "http://www.openwall.com/lists/oss-security/2015/04/23/14"
        }
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  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2015-3405",
    "datePublished": "2017-08-09T16:00:00",
    "dateReserved": "2015-04-23T00:00:00",
    "dateUpdated": "2024-08-06T05:47:57.539Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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