Vulnerability-Lookup

CNVD-2018-05765

Vulnerability from cnvd - Published: 2018-03-20

Title

Linux kernel NFS server（nfsd）文件读取漏洞

Description

Linux kernel是美国Linux基金会发布的操作系统Linux所使用的内核。NFS server（nfsd）是其中的一个网络文件系统服务器。 Linux kernel commit 1995266727fa之前版本中的NFS server（nfsd）存在安全漏洞。远程攻击者可借助NFS利用该漏洞读取或写入文件。

Severity

中

Patch Name

Linux kernel NFS server（nfsd）文件读取漏洞的补丁

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： https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1995266727fa8143897e89b55f5d3c79aa828420

Reference

https://git.kernel.org/linus/1995266727fa8143897e89b55f5d3c79aa828420

Impacted products

Name
Linux Kernel <commit 1995266727fa

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-1000028"
    }
  },
  "description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002NFS server\uff08nfsd\uff09\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u7f51\u7edc\u6587\u4ef6\u7cfb\u7edf\u670d\u52a1\u5668\u3002\r\n\r\nLinux kernel commit 1995266727fa\u4e4b\u524d\u7248\u672c\u4e2d\u7684NFS server\uff08nfsd\uff09\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9NFS\u5229\u7528\u8be5\u6f0f\u6d1e\u8bfb\u53d6\u6216\u5199\u5165\u6587\u4ef6\u3002",
  "discovererName": "unknown",
  "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\nhttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1995266727fa8143897e89b55f5d3c79aa828420",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-05765",
  "openTime": "2018-03-20",
  "patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002NFS server\uff08nfsd\uff09\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u7f51\u7edc\u6587\u4ef6\u7cfb\u7edf\u670d\u52a1\u5668\u3002\r\n\r\nLinux kernel commit 1995266727fa\u4e4b\u524d\u7248\u672c\u4e2d\u7684NFS server\uff08nfsd\uff09\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9NFS\u5229\u7528\u8be5\u6f0f\u6d1e\u8bfb\u53d6\u6216\u5199\u5165\u6587\u4ef6\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": "Linux kernel NFS server\uff08nfsd\uff09\u6587\u4ef6\u8bfb\u53d6\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Kernel \u003ccommit 1995266727fa"
  },
  "referenceLink": "https://git.kernel.org/linus/1995266727fa8143897e89b55f5d3c79aa828420",
  "serverity": "\u4e2d",
  "submitTime": "2018-02-26",
  "title": "Linux kernel NFS server\uff08nfsd\uff09\u6587\u4ef6\u8bfb\u53d6\u6f0f\u6d1e"
}

CVE-2018-1000028 (GCVE-0-2018-1000028)

Vulnerability from cvelistv5 – Published: 2018-02-09 23:00 – Updated: 2024-08-05 12:33

Summary

Linux kernel version after commit bdcf0a423ea1 - 4.15-rc4+, 4.14.8+, 4.9.76+, 4.4.111+ contains a Incorrect Access Control vulnerability in NFS server (nfsd) that can result in remote users reading or writing files they should not be able to via NFS. This attack appear to be exploitable via NFS server must export a filesystem with the "rootsquash" options enabled. This vulnerability appears to have been fixed in after commit 1995266727fa.

Severity

No CVSS data available.

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 28/100 over 2340 records in the last 180 days details

References

1 reference

URL	Tags
https://git.kernel.org/linus/1995266727fa8143897e…	x_refsource_CONFIRM

Date Public

2018-01-22 00:00

Show details on NVD website

JSON

To clipboard

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            "url": "https://git.kernel.org/linus/1995266727fa8143897e89b55f5d3c79aa828420"
          }
        ],
        "title": "CVE Program Container"
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    "cna": {
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      "dateAssigned": "2018-01-23T00:00:00.000Z",
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        "dateUpdated": "2018-02-09T22:57:01.000Z",
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          "url": "https://git.kernel.org/linus/1995266727fa8143897e89b55f5d3c79aa828420"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "DATE_ASSIGNED": "1/23/2018 13:16:14",
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        },
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    "dateReserved": "2018-01-29T00:00:00.000Z",
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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.

Vulnerability timeline

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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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