cnvd - cnvd-2020-22673

cnvd-2020-22673

Vulnerability from cnvd

Title: storeBackup符号链接攻击漏洞

Description:

StoreBackup是一款用于GNU/Linux的磁盘到磁盘备份工具。

storeBackup 3.5及更早版本存在符号链接攻击漏洞。该漏洞源于storeBackup中的storeBackup.pl依赖/tmp/storeBackup.lock路径名。攻击者可利用该漏洞进行符号链接攻击，从而可提升权限。

Severity: 中

Formal description:

厂商尚未提供漏洞修复方案，请关注厂商主页更新： http://storebackup.org/

Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-7040

Impacted products

Name
Storebackup Storebackup <=3.5

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-7040",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-7040"
    }
  },
  "description": "StoreBackup\u662f\u4e00\u6b3e\u7528\u4e8eGNU/Linux\u7684\u78c1\u76d8\u5230\u78c1\u76d8\u5907\u4efd\u5de5\u5177\u3002\n\nstoreBackup 3.5\u53ca\u66f4\u65e9\u7248\u672c\u5b58\u5728\u7b26\u53f7\u94fe\u63a5\u653b\u51fb\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8estoreBackup\u4e2d\u7684storeBackup.pl\u4f9d\u8d56/tmp/storeBackup.lock\u8def\u5f84\u540d\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u8fdb\u884c\u7b26\u53f7\u94fe\u63a5\u653b\u51fb\uff0c\u4ece\u800c\u53ef\u63d0\u5347\u6743\u9650\u3002",
  "formalWay": "\u5382\u5546\u5c1a\u672a\u63d0\u4f9b\u6f0f\u6d1e\u4fee\u590d\u65b9\u6848\uff0c\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u66f4\u65b0\uff1a\r\nhttp://storebackup.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-22673",
  "openTime": "2020-04-13",
  "products": {
    "product": "Storebackup Storebackup \u003c=3.5"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-7040",
  "serverity": "\u4e2d",
  "submitTime": "2020-01-22",
  "title": "storeBackup\u7b26\u53f7\u94fe\u63a5\u653b\u51fb\u6f0f\u6d1e"
}

CVE-2020-7040 (GCVE-0-2020-7040)

Vulnerability from cvelistv5

Published

2020-01-21 20:03

Modified

2024-08-04 09:18

Severity ?

CWE

Summary

storeBackup.pl in storeBackup through 3.5 relies on the /tmp/storeBackup.lock pathname, which allows symlink attacks that possibly lead to privilege escalation. (Local users can also create a plain file named /tmp/storeBackup.lock to block use of storeBackup until an admin manually deletes that file.)

References

▼	URL	Tags
	https://bugzilla.suse.com/show_bug.cgi?id=CVE-2020-7040	x_refsource_MISC
	http://www.openwall.com/lists/oss-security/2020/01/20/3	x_refsource_MISC
	https://seclists.org/oss-sec/2020/q1/20	mailing-list, x_refsource_MLIST
	http://www.openwall.com/lists/oss-security/2020/01/21/2	mailing-list, x_refsource_MLIST
	http://www.openwall.com/lists/oss-security/2020/01/22/2	mailing-list, x_refsource_MLIST
	http://www.openwall.com/lists/oss-security/2020/01/22/3	mailing-list, x_refsource_MLIST
	http://www.openwall.com/lists/oss-security/2020/01/23/1	mailing-list, x_refsource_MLIST
	http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00054.html	vendor-advisory, x_refsource_SUSE
	https://lists.debian.org/debian-lts-announce/2020/02/msg00003.html	mailing-list, x_refsource_MLIST
	https://usn.ubuntu.com/4508-1/	vendor-advisory, x_refsource_UBUNTU

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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