Vulnerability-Lookup

CNVD-2017-10570

Vulnerability from cnvd - Published: 2017-06-21

Title

LightDM安全绕过漏洞

Description

LightDM是一套Linux桌面的桌面显示管理器。 LightDM存在安全绕过漏洞。攻击者可利用该漏洞绕过既定的安全限制并执行未授权的操作。

Severity

低

Patch Name

LightDM安全绕过漏洞的补丁

Patch Description

LightDM是一套Linux桌面的桌面显示管理器。 LightDM存在安全绕过漏洞。攻击者可利用该漏洞绕过既定的安全限制并执行未授权的操作。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

用户可参考如下厂商提供的安全补丁以修复该漏洞： https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1663157

Reference

https://cxsecurity.com/cveshow/CVE-2017-8900/ http://www.securityfocus.com/bid/98554

Impacted products

Name
['Ubuntu Ubuntu Linux 16.10', 'Ubuntu Ubuntu Linux 17.04', 'freedesktop.org LightDM <=1.22.0']

Show details on source website

JSON

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{
  "bids": {
    "bid": {
      "bidNumber": "98554"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-8900",
      "cveUrl": "http://cve.mitre.org/cgi-bin/cvename.cgi?nameCVE-2017-8900"
    }
  },
  "description": "LightDM\u662f\u4e00\u5957Linux\u684c\u9762\u7684\u684c\u9762\u663e\u793a\u7ba1\u7406\u5668\u3002 \r\n\r\nLightDM\u5b58\u5728\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u65e2\u5b9a\u7684\u5b89\u5168\u9650\u5236\u5e76\u6267\u884c\u672a\u6388\u6743\u7684\u64cd\u4f5c\u3002",
  "discovererName": "Tyler Hicks",
  "formalWay": "\u7528\u6237\u53ef\u53c2\u8003\u5982\u4e0b\u5382\u5546\u63d0\u4f9b\u7684\u5b89\u5168\u8865\u4e01\u4ee5\u4fee\u590d\u8be5\u6f0f\u6d1e\uff1a\r\nhttps://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1663157",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-10570",
  "openTime": "2017-06-21",
  "patchDescription": "LightDM\u662f\u4e00\u5957Linux\u684c\u9762\u7684\u684c\u9762\u663e\u793a\u7ba1\u7406\u5668\u3002 \r\n\r\nLightDM\u5b58\u5728\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u65e2\u5b9a\u7684\u5b89\u5168\u9650\u5236\u5e76\u6267\u884c\u672a\u6388\u6743\u7684\u64cd\u4f5c\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": "LightDM\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Ubuntu Ubuntu Linux 16.10",
      "Ubuntu Ubuntu Linux 17.04",
      "freedesktop.org LightDM \u003c=1.22.0"
    ]
  },
  "referenceLink": "https://cxsecurity.com/cveshow/CVE-2017-8900/\r\nhttp://www.securityfocus.com/bid/98554",
  "serverity": "\u4f4e",
  "submitTime": "2017-05-24",
  "title": "LightDM\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e"
}

CVE-2017-8900 (GCVE-0-2017-8900)

Vulnerability from cvelistv5 – Published: 2017-05-12 06:54 – Updated: 2024-08-05 16:48

Summary

LightDM through 1.22.0, when systemd is used in Ubuntu 16.10 and 17.x, allows physically proximate attackers to bypass intended AppArmor restrictions and visit the home directories of arbitrary users by establishing a guest session.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root Scorecard

References

4 references

URL	Tags
http://www.securityfocus.com/bid/98554	vdb-entryx_refsource_BID
https://www.ubuntu.com/usn/usn-3285-1/	x_refsource_CONFIRM
https://people.canonical.com/~ubuntu-security/cve…	x_refsource_CONFIRM
https://launchpad.net/bugs/1663157	x_refsource_CONFIRM

Date Public

2017-05-12 00:00

Show details on NVD website

JSON

To clipboard

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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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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.

Action not permitted

CNVD-2017-10570

CVE-2017-8900 (GCVE-0-2017-8900)

Tags

Sightings

Nomenclature

Related by attack behaviour