Vulnerability-Lookup

CNVD-2016-01730

Vulnerability from cnvd - Published: 2016-03-18

Title

OpenSSH身份验证漏洞

Description

OpenSSH（OpenBSD Secure Shell）是OpenBSD计划组所维护的一套用于安全访问远程计算机的连接工具。该工具是SSH协议的开源实现，支持对所有的传输进行加密，可有效阻止窃听、连接劫持以及其他网络级的攻击。 OpenSSH中存在安全漏洞，该漏洞源于OpenSSH客户端未能正确为不可信的X11转发生成身份验证cookie。攻击者可利用该漏洞与本地X服务器建立可信连接。

Severity

中

Patch Name

OpenSSH身份验证漏洞的补丁

Patch Description

Formal description

目前厂商已经发布了升级补丁以修复此安全问题，补丁获取链接： http://www.openssh.com/txt/release-7.2

Reference

http://www.openwall.com/lists/oss-security/2016/03/16/5

Impacted products

Name
OpenSSH OpenSSH

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2016-1908"
    }
  },
  "description": "OpenSSH\uff08OpenBSD Secure Shell\uff09\u662fOpenBSD\u8ba1\u5212\u7ec4\u6240\u7ef4\u62a4\u7684\u4e00\u5957\u7528\u4e8e\u5b89\u5168\u8bbf\u95ee\u8fdc\u7a0b\u8ba1\u7b97\u673a\u7684\u8fde\u63a5\u5de5\u5177\u3002\u8be5\u5de5\u5177\u662fSSH\u534f\u8bae\u7684\u5f00\u6e90\u5b9e\u73b0\uff0c\u652f\u6301\u5bf9\u6240\u6709\u7684\u4f20\u8f93\u8fdb\u884c\u52a0\u5bc6\uff0c\u53ef\u6709\u6548\u963b\u6b62\u7a83\u542c\u3001\u8fde\u63a5\u52ab\u6301\u4ee5\u53ca\u5176\u4ed6\u7f51\u7edc\u7ea7\u7684\u653b\u51fb\u3002\r\n\r\nOpenSSH\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eOpenSSH\u5ba2\u6237\u7aef\u672a\u80fd\u6b63\u786e\u4e3a\u4e0d\u53ef\u4fe1\u7684X11\u8f6c\u53d1\u751f\u6210\u8eab\u4efd\u9a8c\u8bc1cookie\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u4e0e\u672c\u5730X\u670d\u52a1\u5668\u5efa\u7acb\u53ef\u4fe1\u8fde\u63a5\u3002",
  "discovererName": "Tomas Hoger",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttp://www.openssh.com/txt/release-7.2",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2016-01730",
  "openTime": "2016-03-18",
  "patchDescription": "OpenSSH\uff08OpenBSD Secure Shell\uff09\u662fOpenBSD\u8ba1\u5212\u7ec4\u6240\u7ef4\u62a4\u7684\u4e00\u5957\u7528\u4e8e\u5b89\u5168\u8bbf\u95ee\u8fdc\u7a0b\u8ba1\u7b97\u673a\u7684\u8fde\u63a5\u5de5\u5177\u3002\u8be5\u5de5\u5177\u662fSSH\u534f\u8bae\u7684\u5f00\u6e90\u5b9e\u73b0\uff0c\u652f\u6301\u5bf9\u6240\u6709\u7684\u4f20\u8f93\u8fdb\u884c\u52a0\u5bc6\uff0c\u53ef\u6709\u6548\u963b\u6b62\u7a83\u542c\u3001\u8fde\u63a5\u52ab\u6301\u4ee5\u53ca\u5176\u4ed6\u7f51\u7edc\u7ea7\u7684\u653b\u51fb\u3002\r\n\r\nOpenSSH\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eOpenSSH\u5ba2\u6237\u7aef\u672a\u80fd\u6b63\u786e\u4e3a\u4e0d\u53ef\u4fe1\u7684X11\u8f6c\u53d1\u751f\u6210\u8eab\u4efd\u9a8c\u8bc1cookie\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u4e0e\u672c\u5730X\u670d\u52a1\u5668\u5efa\u7acb\u53ef\u4fe1\u8fde\u63a5\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": "OpenSSH\u8eab\u4efd\u9a8c\u8bc1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "OpenSSH OpenSSH"
  },
  "referenceLink": "http://www.openwall.com/lists/oss-security/2016/03/16/5",
  "serverity": "\u4e2d",
  "submitTime": "2016-03-17",
  "title": "OpenSSH\u8eab\u4efd\u9a8c\u8bc1\u6f0f\u6d1e"
}

CVE-2016-1908 (GCVE-0-2016-1908)

Vulnerability from cvelistv5 – Published: 2017-04-11 00:00 – Updated: 2026-05-29 20:14

Summary

The client in OpenSSH before 7.2 mishandles failed cookie generation for untrusted X11 forwarding and relies on the local X11 server for access-control decisions, which allows remote X11 clients to trigger a fallback and obtain trusted X11 forwarding privileges by leveraging configuration issues on this X11 server, as demonstrated by lack of the SECURITY extension on this X11 server.

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-29 20:14 UTC

CWE

n/a
CWE-287 - Improper Authentication

Assigner

redhat redhat root

References

12 references

URL	Tags
http://www.openssh.com/txt/release-7.2
http://www.oracle.com/technetwork/topics/security…
https://anongit.mindrot.org/openssh.git/commit/?i…
http://openwall.com/lists/oss-security/2016/01/15/13	mailing-list
http://www.securitytracker.com/id/1034705	vdb-entry
http://rhn.redhat.com/errata/RHSA-2016-0741.html	vendor-advisory
https://security.gentoo.org/glsa/201612-18	vendor-advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1298741
https://lists.debian.org/debian-lts-announce/2018…	mailing-list
http://www.securityfocus.com/bid/84427	vdb-entry
http://rhn.redhat.com/errata/RHSA-2016-0465.html	vendor-advisory
https://cert-portal.siemens.com/productcert/pdf/s…

Date Public

2016-01-14 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T23:10:40.244Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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          {
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            "url": "http://www.openssh.com/txt/release-7.2"
          },
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            "tags": [
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            "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html"
          },
          {
            "tags": [
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            ],
            "url": "https://anongit.mindrot.org/openssh.git/commit/?id=ed4ce82dbfa8a3a3c8ea6fa0db113c71e234416c"
          },
          {
            "name": "[oss-security] 20160115 Re: Qualys Security Advisory - Roaming through the OpenSSH client: CVE-2016-0777 and CVE-2016-0778",
            "tags": [
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          {
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          },
          {
            "tags": [
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            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1298741"
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          },
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            "tags": [
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            ],
            "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 9.8,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2016-1908",
                "options": [
                  {
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                  },
                  {
                    "Automatable": "yes"
                  },
                  {
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                  }
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                "timestamp": "2026-05-29T20:14:41.301937Z",
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    "cna": {
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          "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html"
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          "url": "https://anongit.mindrot.org/openssh.git/commit/?id=ed4ce82dbfa8a3a3c8ea6fa0db113c71e234416c"
        },
        {
          "name": "[oss-security] 20160115 Re: Qualys Security Advisory - Roaming through the OpenSSH client: CVE-2016-0777 and CVE-2016-0778",
          "tags": [
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          "url": "http://openwall.com/lists/oss-security/2016/01/15/13"
        },
        {
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          "tags": [
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          "url": "http://www.securitytracker.com/id/1034705"
        },
        {
          "name": "RHSA-2016:0741",
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        },
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          "tags": [
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          "url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html"
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          "url": "http://www.securityfocus.com/bid/84427"
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          "name": "RHSA-2016:0465",
          "tags": [
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          "url": "http://rhn.redhat.com/errata/RHSA-2016-0465.html"
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  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
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    "dateUpdated": "2026-05-29T20:14:45.314Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.