CVE-2015-7705

The rate limiting feature in NTP 4.x before 4.2.8p4 and 4.3.x before 4.3.77 allows remote attackers to have unspecified impact via a large number of crafted requests.

公開： 2017-08-07 最後更新： 2026-06-16 指派方： [email protected] 來源： [email protected]
NVD 狀態：Modified，CVE 狀態： published
檢視： NVD, CVE.org, EUVD

CVE-2015-7705 綜合評估為高風險（67.7/100）：CVSS 技術影響為嚴重級，利用機率偏高（EPSS 12.35%，百分位 96%） EPSS 顯示該漏洞近期被利用的可能性處於高位。 被利用機率偏高—請盤點暴露面並優先安排修補。

風險隨態勢動態變化；本站持續評估並同步更新本頁展示內容。

CVE-2015-7705 的 EPSS（利用預測評分）

EPSS 日更估計相對被利用可能性；百分位表示該 CVE 在已評分漏洞中的相對排名（越高表示相對更嚴重）。

# 日期 舊 EPSS 分數 新 EPSS 分數 變化（新 − 舊）
1 2026-06-15 17.37% 12.35% -5.02%
2 2026-05-21 31.03% 17.37% -13.66%
3 2026-01-30 — 31.03% —

完整 EPSS 歷史 （共 21 筆）

CVE-2015-7705 的 CVSS 指標

該 CVE 的 CVSS 指標。

底座分 版本 嚴重度 向量 可利用性 影響 分數來源
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 點擊展開
攻擊向量 (AV:N)
可經網際網路或企業內可路由網段從遠端觸達，攻擊者不必在裝置旁邊。
攻擊複雜度 (AC:L)
前置條件清楚，成功路徑穩定，不必仰賴罕見競態或極端環境。
權限需求 (PR:N)
不必事先登入或提權，匿名工作階段也可能成為跳板。
使用者互動 (UI:N)
不必受害者點連結、放行巨集或安裝軟體，攻擊鏈可自動走完。
作用域 (S:U)
破壞局限在脆弱元件原本的安全權限與信任域之內。
機密性影響 (C:H)
大量讀取、匯出或長期潛伏竊取機敏資料，在實務上成立。
完整性影響 (I:H)
可竄改稽核紀錄、植入後門或大面積偽造業務資料，動搖信任根基。
可用性影響 (A:H)
可造成長時間中斷、關鍵交易無法完成，或伴隨資料毀損導致難以自癒。
 3.9 5.9 [email protected]
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P 點擊展開
存取路徑 (AV:N)
只要路由可達，即可從遠端發動利用。
存取複雜度 (AC:L)
步驟短、路徑清楚，重現成本低。
認證 (AU:N)
全程無需有效身分。
機密性影響 (C:P)
機密性受到部分損害。
完整性影響 (I:P)
完整性受到部分損害。
可用性影響 (A:P)
可用性受到部分損害。
 10.0 6.4 [email protected]

CVE-2015-7705 的弱點列舉

CVE-2015-7705 的 OS 追蹤

vendor priority summary link
debian not yet assigned CVE-2015-7705 not yet assigned priority: Debian including 1 source packages (ntp), 1 status rows across 1 suites (bullseye): resolved 1. https://security-tracker.debian.org/tracker/CVE-2015-7705
gentoo normal CVE-2015-7705: 1 GLSA(s) (201607-15), 1 atom(s) (net-misc/ntp); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2015-7705
redhat medium — https://access.redhat.com/security/cve/CVE-2015-7705
suse critical CVE-2015-7705 severity critical: SUSE including 30 source package names (ntp, ntp-4.2.8p10-63.3, …), 120 product×package rows across 71 product lines (HPE Helion OpenStack 8, Image SLES12-SP5-Azure-BYOS, … (71 product lines)): Fixed 89, Known Not Affected 31. https://www.suse.com/security/cve/CVE-2015-7705/
ubuntu medium CVE-2015-7705 medium priority: Ubuntu including 1 source packages (ntp), 5 status rows across 5 suites (precise, trusty, upstream, vivid, wily): released 4, needs-triage 1. https://ubuntu.com/security/CVE-2015-7705

CVE-2015-7705 的影響軟體 / 設定

廠商 產品 版本 原始 CPE
ntp ntp >= 4.2.0, < 4.2.8 cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:*
ntp ntp >= 4.3.0, < 4.3.77 cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:*
ntp ntp 4.2.8 cpe:2.3:a:ntp:ntp:4.2.8:-:*:*:*:*:*:*
ntp ntp 4.2.8 cpe:2.3:a:ntp:ntp:4.2.8:p1:*:*:*:*:*:*
ntp ntp 4.2.8 cpe:2.3:a:ntp:ntp:4.2.8:p1-beta1:*:*:*:*:*:*
ntp ntp 4.2.8 cpe:2.3:a:ntp:ntp:4.2.8:p1-beta2:*:*:*:*:*:*
ntp ntp 4.2.8 cpe:2.3:a:ntp:ntp:4.2.8:p1-beta3:*:*:*:*:*:*
ntp ntp 4.2.8 cpe:2.3:a:ntp:ntp:4.2.8:p1-beta4:*:*:*:*:*:*
ntp ntp 4.2.8 cpe:2.3:a:ntp:ntp:4.2.8:p1-beta5:*:*:*:*:*:*
ntp ntp 4.2.8 cpe:2.3:a:ntp:ntp:4.2.8:p1-rc1:*:*:*:*:*:*
ntp ntp 4.2.8 cpe:2.3:a:ntp:ntp:4.2.8:p1-rc2:*:*:*:*:*:*
ntp ntp 4.2.8 cpe:2.3:a:ntp:ntp:4.2.8:p2:*:*:*:*:*:*
ntp ntp 4.2.8 cpe:2.3:a:ntp:ntp:4.2.8:p2-rc1:*:*:*:*:*:*
ntp ntp 4.2.8 cpe:2.3:a:ntp:ntp:4.2.8:p2-rc2:*:*:*:*:*:*
ntp ntp 4.2.8 cpe:2.3:a:ntp:ntp:4.2.8:p2-rc3:*:*:*:*:*:*
ntp ntp 4.2.8 cpe:2.3:a:ntp:ntp:4.2.8:p3:*:*:*:*:*:*
ntp ntp 4.2.8 cpe:2.3:a:ntp:ntp:4.2.8:p3-rc1:*:*:*:*:*:*
ntp ntp 4.2.8 cpe:2.3:a:ntp:ntp:4.2.8:p3-rc2:*:*:*:*:*:*
ntp ntp 4.2.8 cpe:2.3:a:ntp:ntp:4.2.8:p3-rc3:*:*:*:*:*:*
netapp oncommand_performance_manager — cpe:2.3:a:netapp:oncommand_performance_manager:-:*:*:*:*:*:*:*
netapp oncommand_unified_manager — cpe:2.3:a:netapp:oncommand_unified_manager:-:*:*:*:*:clustered_data_ontap:*:*
netapp clustered_data_ontap — cpe:2.3:o:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*
netapp data_ontap — cpe:2.3:o:netapp:data_ontap:-:*:*:*:*:7-mode:*:*
citrix xenserver 6.0.2 cpe:2.3:a:citrix:xenserver:6.0.2:*:*:*:*:*:*:*
citrix xenserver 6.2.0 cpe:2.3:a:citrix:xenserver:6.2.0:-:*:*:*:*:*:*
citrix xenserver 6.5 cpe:2.3:a:citrix:xenserver:6.5:-:*:*:*:*:*:*
citrix xenserver 7.0 cpe:2.3:a:citrix:xenserver:7.0:*:*:*:*:*:*:*
siemens tim_4r-ie_firmware — cpe:2.3:o:siemens:tim_4r-ie_firmware:*:*:*:*:*:*:*:*
siemens tim_4r-ie_dnp3_firmware — cpe:2.3:o:siemens:tim_4r-ie_dnp3_firmware:*:*:*:*:*:*:*:*

CVE-2015-7705 的參考連結

URL 標籤
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.html
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00034.html
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00037.html
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.html
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00052.html
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00001.html
http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00020.html
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.html
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.html
http://lists.opensuse.org/opensuse-updates/2015-11/msg00093.html
http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.html
http://packetstormsecurity.com/files/134137/Slackware-Security-Advisory-ntp-Updates.html
http://support.ntp.org/bin/view/Main/NtpBug2901 Vendor Advisory
http://support.ntp.org/bin/view/Main/SecurityNotice#October_2015_NTP_4_2_8p4_Securit Release Notes Vendor Advisory
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151021-ntp
http://www.securityfocus.com/archive/1/536737/100/0/threaded
http://www.securityfocus.com/archive/1/536796/100/0/threaded
http://www.securityfocus.com/archive/1/archive/1/536737/100/100/threaded
http://www.securityfocus.com/archive/1/archive/1/536796/100/100/threaded
http://www.securityfocus.com/bid/77284 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1033951 Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/USN-2783-1
https://bto.bluecoat.com/security-advisory/sa103
https://bugzilla.redhat.com/show_bug.cgi?id=1274184 Issue Tracking Third Party Advisory VDB Entry
https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf
https://cert-portal.siemens.com/productcert/pdf/ssa-497656.pdf Third Party Advisory
https://eprint.iacr.org/2015/1020.pdf Technical Description
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05270839 Third Party Advisory VDB Entry
https://security.gentoo.org/glsa/201607-15 Third Party Advisory VDB Entry
https://security.netapp.com/advisory/ntap-20171004-0001/ Third Party Advisory
https://support.citrix.com/article/CTX220112 Third Party Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-21-103-11 Third Party Advisory US Government Resource
https://us-cert.cisa.gov/ics/advisories/icsa-21-159-11
https://www.arista.com/en/support/advisories-notices/security-advisories/1212-security-advisory-0016
https://www.cs.bu.edu/~goldbe/NTPattack.html Not Applicable
https://www.kb.cert.org/vuls/id/718152 Third Party Advisory US Government Resource
cvelogic Threat Intelligence