cnvd - cnvd-2020-72732

cnvd-2020-72732

Vulnerability from cnvd

Title: Cisco FXOS安全启动绕过漏洞

Description:

Cisco FXOS Software是美国思科（Cisco）公司的一套运行在思科安全设备中的防火墙软件。

Cisco FXOS存在安全漏洞，该漏洞源于安全引导过程的保护不够。攻击者可利用该漏洞破坏信任链，并将代码注入设备的引导过程中，该过程将在每次引导时执行，并在重新引导时保持持久性。

Severity: 高

Patch Name: Cisco FXOS安全启动绕过漏洞的补丁

Patch Description:

Cisco FXOS Software是美国思科（Cisco）公司的一套运行在思科安全设备中的防火墙软件。

Cisco FXOS存在安全漏洞，该漏洞源于安全引导过程的保护不够。攻击者可利用该漏洞破坏信任链，并将代码注入设备的引导过程中，该过程将在每次引导时执行，并在重新引导时保持持久性。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:

厂商已发布了漏洞修复程序，请及时关注更新： https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fxos-sbbp-XTuPkYTn

Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-3455

Impacted products

Name
Cisco FXOS

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-3455",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-3455"
    }
  },
  "description": "Cisco FXOS Software\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u5957\u8fd0\u884c\u5728\u601d\u79d1\u5b89\u5168\u8bbe\u5907\u4e2d\u7684\u9632\u706b\u5899\u8f6f\u4ef6\u3002\n\nCisco FXOS\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5b89\u5168\u5f15\u5bfc\u8fc7\u7a0b\u7684\u4fdd\u62a4\u4e0d\u591f\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7834\u574f\u4fe1\u4efb\u94fe\uff0c\u5e76\u5c06\u4ee3\u7801\u6ce8\u5165\u8bbe\u5907\u7684\u5f15\u5bfc\u8fc7\u7a0b\u4e2d\uff0c\u8be5\u8fc7\u7a0b\u5c06\u5728\u6bcf\u6b21\u5f15\u5bfc\u65f6\u6267\u884c\uff0c\u5e76\u5728\u91cd\u65b0\u5f15\u5bfc\u65f6\u4fdd\u6301\u6301\u4e45\u6027\u3002",
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  "number": "CNVD-2020-72732",
  "openTime": "2020-12-19",
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  "patchName": "Cisco FXOS\u5b89\u5168\u542f\u52a8\u7ed5\u8fc7\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Cisco FXOS"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-3455",
  "serverity": "\u9ad8",
  "submitTime": "2020-10-26",
  "title": "Cisco FXOS\u5b89\u5168\u542f\u52a8\u7ed5\u8fc7\u6f0f\u6d1e"
}

CVE-2020-3455 (GCVE-0-2020-3455)

Vulnerability from cvelistv5

Published

2020-10-21 18:36

Modified

2024-11-13 17:48

Severity ?

6.7 (Medium) - CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-693

Summary

A vulnerability in the secure boot process of Cisco FXOS Software could allow an authenticated, local attacker to bypass the secure boot mechanisms. The vulnerability is due to insufficient protections of the secure boot process. An attacker could exploit this vulnerability by injecting code into a specific file that is then referenced during the device boot process. A successful exploit could allow the attacker to break the chain of trust and inject code into the boot process of the device which would be executed at each boot and maintain persistence across reboots.

References

▼	URL	Tags
	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fxos-sbbp-XTuPkYTn	vendor-advisory, x_refsource_CISCO

Impacted products

	Vendor	Product	Version
	Cisco	Cisco Firepower Extensible Operating System (FXOS)	Version: n/a

Show details on NVD website

JSON

To clipboard

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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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