CVE-2016-2118

The MS-SAMR and MS-LSAD protocol implementations in Samba 3.x and 4.x before 4.2.11, 4.3.x before 4.3.8, and 4.4.x before 4.4.2 mishandle DCERPC connections, which allows man-in-the-middle attackers to perform protocol-downgrade attacks and impersonate users by modifying the client-server data stream, aka "BADLOCK."

公開： 2016-04-12 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-2016-2118 綜合評估為中等風險（64.2/100）：CVSS 技術影響為高級，利用機率偏高（EPSS 36.93%，百分位 98%） 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-2016-2118 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 2026-06-29 37.18% 36.93% -0.25%
2 2026-06-26 37.04% 37.18% +0.14%
3 2026-06-15 — 37.04% —

完整 EPSS 歷史 （共 26 筆）

CVE-2016-2118 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
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/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:H)
即使網路可達，也常要卡時間窗、負載或特定版本組合才打得響。
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:R)
需要一次明確的使用者動作（安裝、改設定、開啟惡意文件等）才會落地。
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。
 1.6 5.9 [email protected]
6.8 2.0 MEDIUM
AV:N/AC:M/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:M)
需要若干有利條件，但不必「千年一遇」。
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。
 8.6 6.4 [email protected]

CVE-2016-2118 的弱點列舉

CVE-2016-2118 的 OS 追蹤

vendor priority summary link
debian not yet assigned CVE-2016-2118 not yet assigned priority: Debian including 1 source packages (samba), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2016-2118
gentoo normal CVE-2016-2118: 1 GLSA(s) (201612-47), 1 atom(s) (net-fs/samba); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2016-2118
redhat high — https://access.redhat.com/security/cve/CVE-2016-2118
suse medium CVE-2016-2118 severity moderate: SUSE including 1248 source package names (amazon/suse-sles-15-sp1-chost-byos-v20210304-hvm-ssd-x86_64, amazon/suse-sles-15-sp1-chost-byos-v20220127-hvm-ssd-x86_64, …), 1889 product×package rows across 58 product lines (SUSE Liberty Linux 7, SUSE Linux Enterprise Desktop 12, … (58 product lines)): Fixed 1686, Known Affected 157, Known Not Affected 46. https://www.suse.com/security/cve/CVE-2016-2118/
ubuntu medium CVE-2016-2118 medium priority: Ubuntu including 2 source packages (samba, samba4), 14 status rows across 7 suites (precise, trusty, upstream, wily, xenial, yakkety, zesty): released 7, DNE 5, ignored 1, needs-triage 1. https://ubuntu.com/security/CVE-2016-2118

CVE-2016-2118 的影響軟體 / 設定

廠商 產品 版本 原始 CPE
samba samba >= 3.6.0, < 4.2.10 cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
samba samba >= 4.3.0, < 4.3.7 cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
samba samba >= 4.4.0, < 4.4.1 cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
canonical ubuntu_linux 12.04 cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*
canonical ubuntu_linux 14.04 cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
canonical ubuntu_linux 14.04 cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 15.10 cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*
canonical ubuntu_linux 16.04 cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
canonical ubuntu_linux 16.04 cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
debian debian_linux 7.0 cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

CVE-2016-2118 的參考連結

URL 標籤
http://badlock.org/ Technical Description Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182185.html Mailing List Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182272.html Mailing List Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-April/182288.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00020.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00021.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00022.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00023.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00024.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00042.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00047.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00048.html Mailing List Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-0611.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-0612.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-0613.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-0614.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-0618.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-0619.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-0620.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-0621.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-0623.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-0624.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-0625.html Third Party Advisory
http://www.debian.org/security/2016/dsa-3548 Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html Third Party Advisory
http://www.securityfocus.com/bid/86002 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1035533 Third Party Advisory VDB Entry
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.458012 Mailing List Third Party Advisory
http://www.ubuntu.com/usn/USN-2950-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-2950-2 Third Party Advisory
http://www.ubuntu.com/usn/USN-2950-3 Third Party Advisory
http://www.ubuntu.com/usn/USN-2950-4 Third Party Advisory
http://www.ubuntu.com/usn/USN-2950-5 Third Party Advisory
https://access.redhat.com/security/vulnerabilities/badlock Third Party Advisory
https://bto.bluecoat.com/security-advisory/sa122 Third Party Advisory
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05162399 Third Party Advisory
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05166182 Third Party Advisory
https://help.ecostruxureit.com/display/public/UADCO8x/StruxureWare+Data+Center+Operation+Software+Vulnerability+Fixes Third Party Advisory
https://kb.netapp.com/support/s/article/ka51A0000008SXzQAM/smb-vulnerabilities-in-multiple-netapp-products Third Party Advisory
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40196 Third Party Advisory
https://security.gentoo.org/glsa/201612-47 Third Party Advisory
https://www.kb.cert.org/vuls/id/813296 Third Party Advisory US Government Resource
https://www.samba.org/samba/history/samba-4.2.10.html Third Party Advisory
https://www.samba.org/samba/latest_news.html#4.4.2 Vendor Advisory
https://www.samba.org/samba/security/CVE-2016-2118.html Vendor Advisory
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