Vulnerability-Lookup

CNVD-2018-00212

Vulnerability from cnvd - Published: 2018-01-04

Title

rsync访问限制绕过漏洞（CNVD-2018-00212）

Description

rsync是澳大利亚软件开发者安德鲁-垂鸠（Andrew Tridgell）和保罗-麦可拉斯（Paul Mackerras）共同研发的一套用于类Unix系统中的数据镜像备份应用程序，它能够同步更新两处计算机的文件与目录，并利用差分编码减少数据传输。 rsync 2017-11-03之前的3.1.2和3.1.3-development版本中的守护进程存在安全漏洞，该漏洞源于程序未能检测daemon_filter_list数据结构中的fnamecmp文件名，并未对‘xname follows’字符串中的路径名实施sanitize_paths保护机制。远程攻击者可利用该漏洞绕过访问限制。

Severity

高

Patch Name

rsync访问限制绕过漏洞（CNVD-2018-00212）的补丁

Patch Description

Formal description

厂商已发布漏洞修复程序，请及时关注更新： https://git.samba.org/?p=rsync.git;a=commit;h=5509597decdbd7b91994210f700329d8a35e70a1； https://git.samba.org/?p=rsync.git;a=commit;h=70aeb5fddd1b2f8e143276f8d5a085db16c593b9

Reference

https://nvd.nist.gov/vuln/detail/CVE-2017-17434 https://www.debian.org/security/2017/dsa-4068

Impacted products

Name
['Rsync rsync 3.1.2', 'Rsync rsync 3.1.3-development (<2017-11-03)']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-17434"
    }
  },
  "description": "rsync\u662f\u6fb3\u5927\u5229\u4e9a\u8f6f\u4ef6\u5f00\u53d1\u8005\u5b89\u5fb7\u9c81-\u5782\u9e20\uff08Andrew Tridgell\uff09\u548c\u4fdd\u7f57-\u9ea6\u53ef\u62c9\u65af\uff08Paul Mackerras\uff09\u5171\u540c\u7814\u53d1\u7684\u4e00\u5957\u7528\u4e8e\u7c7bUnix\u7cfb\u7edf\u4e2d\u7684\u6570\u636e\u955c\u50cf\u5907\u4efd\u5e94\u7528\u7a0b\u5e8f\uff0c\u5b83\u80fd\u591f\u540c\u6b65\u66f4\u65b0\u4e24\u5904\u8ba1\u7b97\u673a\u7684\u6587\u4ef6\u4e0e\u76ee\u5f55\uff0c\u5e76\u5229\u7528\u5dee\u5206\u7f16\u7801\u51cf\u5c11\u6570\u636e\u4f20\u8f93\u3002\r\n\r\nrsync 2017-11-03\u4e4b\u524d\u76843.1.2\u548c3.1.3-development\u7248\u672c\u4e2d\u7684\u5b88\u62a4\u8fdb\u7a0b\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u68c0\u6d4bdaemon_filter_list\u6570\u636e\u7ed3\u6784\u4e2d\u7684fnamecmp\u6587\u4ef6\u540d\uff0c\u5e76\u672a\u5bf9\u2018xname follows\u2019\u5b57\u7b26\u4e32\u4e2d\u7684\u8def\u5f84\u540d\u5b9e\u65bdsanitize_paths\u4fdd\u62a4\u673a\u5236\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u8bbf\u95ee\u9650\u5236\u3002",
  "discovererName": "unknow",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://git.samba.org/?p=rsync.git;a=commit;h=5509597decdbd7b91994210f700329d8a35e70a1\uff1b\r\nhttps://git.samba.org/?p=rsync.git;a=commit;h=70aeb5fddd1b2f8e143276f8d5a085db16c593b9",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-00212",
  "openTime": "2018-01-04",
  "patchDescription": "rsync\u662f\u6fb3\u5927\u5229\u4e9a\u8f6f\u4ef6\u5f00\u53d1\u8005\u5b89\u5fb7\u9c81-\u5782\u9e20\uff08Andrew Tridgell\uff09\u548c\u4fdd\u7f57-\u9ea6\u53ef\u62c9\u65af\uff08Paul Mackerras\uff09\u5171\u540c\u7814\u53d1\u7684\u4e00\u5957\u7528\u4e8e\u7c7bUnix\u7cfb\u7edf\u4e2d\u7684\u6570\u636e\u955c\u50cf\u5907\u4efd\u5e94\u7528\u7a0b\u5e8f\uff0c\u5b83\u80fd\u591f\u540c\u6b65\u66f4\u65b0\u4e24\u5904\u8ba1\u7b97\u673a\u7684\u6587\u4ef6\u4e0e\u76ee\u5f55\uff0c\u5e76\u5229\u7528\u5dee\u5206\u7f16\u7801\u51cf\u5c11\u6570\u636e\u4f20\u8f93\u3002\r\n\r\nrsync 2017-11-03\u4e4b\u524d\u76843.1.2\u548c3.1.3-development\u7248\u672c\u4e2d\u7684\u5b88\u62a4\u8fdb\u7a0b\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u68c0\u6d4bdaemon_filter_list\u6570\u636e\u7ed3\u6784\u4e2d\u7684fnamecmp\u6587\u4ef6\u540d\uff0c\u5e76\u672a\u5bf9\u2018xname follows\u2019\u5b57\u7b26\u4e32\u4e2d\u7684\u8def\u5f84\u540d\u5b9e\u65bdsanitize_paths\u4fdd\u62a4\u673a\u5236\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u8bbf\u95ee\u9650\u5236\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": "rsync\u8bbf\u95ee\u9650\u5236\u7ed5\u8fc7\u6f0f\u6d1e\uff08CNVD-2018-00212\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Rsync rsync 3.1.2",
      "Rsync rsync 3.1.3-development (\u003c2017-11-03)"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2017-17434\r\nhttps://www.debian.org/security/2017/dsa-4068",
  "serverity": "\u9ad8",
  "submitTime": "2017-12-06",
  "title": "rsync\u8bbf\u95ee\u9650\u5236\u7ed5\u8fc7\u6f0f\u6d1e\uff08CNVD-2018-00212\uff09"
}

CVE-2017-17434 (GCVE-0-2017-17434)

Vulnerability from cvelistv5 – Published: 2017-12-06 03:00 – Updated: 2024-08-05 20:51

Summary

The daemon in rsync 3.1.2, and 3.1.3-development before 2017-12-03, does not check for fnamecmp filenames in the daemon_filter_list data structure (in the recv_files function in receiver.c) and also does not apply the sanitize_paths protection mechanism to pathnames found in "xname follows" strings (in the read_ndx_and_attrs function in rsync.c), which allows remote attackers to bypass intended access restrictions.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

5 references

URL	Tags
https://git.samba.org/?p=rsync.git%3Ba=commit%3Bh…	x_refsource_MISC
http://security.cucumberlinux.com/security/detail…	x_refsource_CONFIRM
https://www.debian.org/security/2017/dsa-4068	vendor-advisoryx_refsource_DEBIAN
https://lists.debian.org/debian-lts-announce/2017…	mailing-listx_refsource_MLIST
https://git.samba.org/?p=rsync.git%3Ba=commit%3Bh…	x_refsource_MISC

Date Public

2017-12-05 00:00

Show details on NVD website

JSON

To clipboard

{
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          "dateUpdated": "2024-08-05T20:51:31.647Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
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            ],
            "url": "https://git.samba.org/?p=rsync.git%3Ba=commit%3Bh=70aeb5fddd1b2f8e143276f8d5a085db16c593b9"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://security.cucumberlinux.com/security/details.php?id=170"
          },
          {
            "name": "DSA-4068",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
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            ],
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          },
          {
            "name": "[debian-lts-announce] 20171222 [SECURITY] [DLA 1218-1] rsync security update",
            "tags": [
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            ],
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          },
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            ],
            "url": "https://git.samba.org/?p=rsync.git%3Ba=commit%3Bh=5509597decdbd7b91994210f700329d8a35e70a1"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
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          "versions": [
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      ],
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        "dateUpdated": "2018-02-02T10:57:01.000Z",
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      },
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        },
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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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Action not permitted

CNVD-2018-00212

CVE-2017-17434 (GCVE-0-2017-17434)

Tags

Sightings

Nomenclature

Related by attack behaviour