Vulnerability-Lookup

CNVD-2017-14147

Vulnerability from cnvd - Published: 2017-07-12

Title

Debian cron package权限提升漏洞

Description

Debian是Debian Project合作组织创建的以Linux或FreeBSD为内核的自由操作系统。ubuntu是一个开源GNU/Linux操作系统。cron package是其中的一个调度守护进程安装包。基于Debian平台的cron package 3.0pl1-128及之前的版本和基于Ubuntu平台的cron package 3.0pl1-128ubuntu2及之前的版本中存在权限提升漏洞。攻击者可通过实施符号链接攻击利用该漏洞将group crontab提升至root权限。

Severity

高

Patch Name

Debian cron package权限提升漏洞的补丁

Patch Description

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： http://bugs.debian.org/864466

Reference

http://www.openwall.com/lists/oss-security/2017/06/08/3

Impacted products

Name
['Debian cron package <=3.0pl1-128', 'Ubuntu cron package <=3.0pl1-128ubuntu2']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-9525"
    }
  },
  "description": "Debian\u662fDebian Project\u5408\u4f5c\u7ec4\u7ec7\u521b\u5efa\u7684\u4ee5Linux\u6216FreeBSD\u4e3a\u5185\u6838\u7684\u81ea\u7531\u64cd\u4f5c\u7cfb\u7edf\u3002ubuntu\u662f\u4e00\u4e2a\u5f00\u6e90GNU/Linux\u64cd\u4f5c\u7cfb\u7edf\u3002cron package\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u8c03\u5ea6\u5b88\u62a4\u8fdb\u7a0b\u5b89\u88c5\u5305\u3002\r\n\r\n\u57fa\u4e8eDebian\u5e73\u53f0\u7684cron package 3.0pl1-128\u53ca\u4e4b\u524d\u7684\u7248\u672c\u548c\u57fa\u4e8eUbuntu\u5e73\u53f0\u7684cron package 3.0pl1-128ubuntu2\u53ca\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u5b58\u5728\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5b9e\u65bd\u7b26\u53f7\u94fe\u63a5\u653b\u51fb\u5229\u7528\u8be5\u6f0f\u6d1e\u5c06group crontab\u63d0\u5347\u81f3root\u6743\u9650\u3002",
  "discovererName": "Solar Designer",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttp://bugs.debian.org/864466",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-14147",
  "openTime": "2017-07-12",
  "patchDescription": "Debian\u662fDebian Project\u5408\u4f5c\u7ec4\u7ec7\u521b\u5efa\u7684\u4ee5Linux\u6216FreeBSD\u4e3a\u5185\u6838\u7684\u81ea\u7531\u64cd\u4f5c\u7cfb\u7edf\u3002ubuntu\u662f\u4e00\u4e2a\u5f00\u6e90GNU/Linux\u64cd\u4f5c\u7cfb\u7edf\u3002cron package\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u8c03\u5ea6\u5b88\u62a4\u8fdb\u7a0b\u5b89\u88c5\u5305\u3002\r\n\r\n\u57fa\u4e8eDebian\u5e73\u53f0\u7684cron package 3.0pl1-128\u53ca\u4e4b\u524d\u7684\u7248\u672c\u548c\u57fa\u4e8eUbuntu\u5e73\u53f0\u7684cron package 3.0pl1-128ubuntu2\u53ca\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u5b58\u5728\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5b9e\u65bd\u7b26\u53f7\u94fe\u63a5\u653b\u51fb\u5229\u7528\u8be5\u6f0f\u6d1e\u5c06group crontab\u63d0\u5347\u81f3root\u6743\u9650\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": "Debian cron package\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Debian cron package \u003c=3.0pl1-128",
      "Ubuntu cron package \u003c=3.0pl1-128ubuntu2"
    ]
  },
  "referenceLink": "http://www.openwall.com/lists/oss-security/2017/06/08/3",
  "serverity": "\u9ad8",
  "submitTime": "2017-06-13",
  "title": "Debian cron package\u6743\u9650\u63d0\u5347\u6f0f\u6d1e"
}

CVE-2017-9525 (GCVE-0-2017-9525)

Vulnerability from cvelistv5 – Published: 2017-06-09 16:00 – Updated: 2024-08-05 17:11

Summary

In the cron package through 3.0pl1-128 on Debian, and through 3.0pl1-128ubuntu2 on Ubuntu, the postinst maintainer script allows for group-crontab-to-root privilege escalation via symlink attacks against unsafe usage of the chown and chmod programs.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

5 references

URL	Tags
http://bugs.debian.org/864466	x_refsource_MISC
http://www.openwall.com/lists/oss-security/2017/06/08/3	x_refsource_MISC
http://www.securitytracker.com/id/1038651	vdb-entryx_refsource_SECTRACK
https://lists.debian.org/debian-lts-announce/2019…	mailing-listx_refsource_MLIST
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST

Date Public

2017-06-09 00:00

Show details on NVD website

JSON

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            "tags": [
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            ],
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            ],
            "url": "https://lists.debian.org/debian-lts-announce/2021/10/msg00029.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.

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.