Vulnerability-Lookup

CNVD-2016-01816

Vulnerability from cnvd - Published: 2016-03-24

Title

Dropbear SSH CRLF注入漏洞

Description

Dropbear是一个相对较小的SSH服务器和客户端。 Dropbear SSH 2016.72之前版本存在CRLF注入漏洞，允许远程认证用户通过精心制造X11转发数据绕过目标shell命令。

Severity

中

Patch Name

Dropbear SSH CRLF注入漏洞的补丁

Patch Description

Dropbear是一个相对较小的SSH服务器和客户端。 Dropbear SSH 2016.72之前版本存在CRLF注入漏洞，允许远程认证用户通过精心制造X11转发数据绕过目标shell命令。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

用户可联系供应商获得补丁信息： https://matt.ucc.asn.au/dropbear/CHANGES

Reference

https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-3116

Impacted products

Name
Dropbear SSH <2016.72

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2016-3116"
    }
  },
  "description": "Dropbear\u662f\u4e00\u4e2a\u76f8\u5bf9\u8f83\u5c0f\u7684SSH\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u3002\r\n\r\nDropbear SSH 2016.72\u4e4b\u524d\u7248\u672c\u5b58\u5728CRLF\u6ce8\u5165\u6f0f\u6d1e\uff0c\u5141\u8bb8\u8fdc\u7a0b\u8ba4\u8bc1\u7528\u6237\u901a\u8fc7\u7cbe\u5fc3\u5236\u9020X11\u8f6c\u53d1\u6570\u636e\u7ed5\u8fc7\u76ee\u6807shell\u547d\u4ee4\u3002",
  "discovererName": "Damien Miller \uff08djm@cvs.openbsd.org\uff09",
  "formalWay": "\u7528\u6237\u53ef\u8054\u7cfb\u4f9b\u5e94\u5546\u83b7\u5f97\u8865\u4e01\u4fe1\u606f\uff1a\r\nhttps://matt.ucc.asn.au/dropbear/CHANGES",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2016-01816",
  "openTime": "2016-03-24",
  "patchDescription": "Dropbear\u662f\u4e00\u4e2a\u76f8\u5bf9\u8f83\u5c0f\u7684SSH\u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u3002\r\n\r\nDropbear SSH 2016.72\u4e4b\u524d\u7248\u672c\u5b58\u5728CRLF\u6ce8\u5165\u6f0f\u6d1e\uff0c\u5141\u8bb8\u8fdc\u7a0b\u8ba4\u8bc1\u7528\u6237\u901a\u8fc7\u7cbe\u5fc3\u5236\u9020X11\u8f6c\u53d1\u6570\u636e\u7ed5\u8fc7\u76ee\u6807shell\u547d\u4ee4\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": "Dropbear SSH CRLF\u6ce8\u5165\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Dropbear SSH \u003c2016.72"
  },
  "referenceLink": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-3116",
  "serverity": "\u4e2d",
  "submitTime": "2016-03-23",
  "title": "Dropbear SSH CRLF\u6ce8\u5165\u6f0f\u6d1e"
}

CVE-2016-3116 (GCVE-0-2016-3116)

Vulnerability from cvelistv5 – Published: 2016-03-22 10:00 – Updated: 2024-08-05 23:47

Summary

CRLF injection vulnerability in Dropbear SSH before 2016.72 allows remote authenticated users to bypass intended shell-command restrictions via crafted X11 forwarding data.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root Scorecard

References

10 references

URL	Tags
https://github.com/tintinweb/pub/tree/master/pocs…	x_refsource_MISC
https://matt.ucc.asn.au/dropbear/CHANGES	x_refsource_CONFIRM
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
http://packetstormsecurity.com/files/136251/Dropb…	x_refsource_MISC
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
http://seclists.org/fulldisclosure/2016/Mar/47	mailing-listx_refsource_FULLDISC
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
http://lists.opensuse.org/opensuse-updates/2016-0…	vendor-advisoryx_refsource_SUSE
https://security.gentoo.org/glsa/201607-08	vendor-advisoryx_refsource_GENTOO
http://lists.opensuse.org/opensuse-updates/2016-0…	vendor-advisoryx_refsource_SUSE

Date Public

2016-03-09 00:00

Show details on NVD website

JSON

To clipboard

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          },
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          "url": "http://packetstormsecurity.com/files/136251/Dropbear-SSHD-xauth-Command-Injection-Bypass.html"
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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.

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.
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Action not permitted

CNVD-2016-01816

CVE-2016-3116 (GCVE-0-2016-3116)

Tags

Sightings

Nomenclature

Related by attack behaviour