cnvd - cnvd-2020-14317

CNVD-2020-14317

Vulnerability from cnvd - Published: 2020-02-28

Title

Cisco UCS C-Series数据伪造漏洞

Description

Cisco UCS C-Series是美国思科（Cisco）公司的一款C系列机架式服务器。 Cisco UCS C-Series Rack Servers中的固件存在数据伪造漏洞，该漏洞源于程序无法正确验证服务器固件更新镜像。攻击者可利用该漏洞利用该漏洞绕过签名验证检查并加载未被Cisco签名的软件镜像。

Severity

中

Patch Name

Cisco UCS C-Series数据伪造漏洞的补丁

Patch Description

Cisco UCS C-Series是美国思科（Cisco）公司的一款C系列机架式服务器。 Cisco UCS C-Series Rack Servers中的固件存在数据伪造漏洞，该漏洞源于程序无法正确验证服务器固件更新镜像。攻击者可利用该漏洞利用该漏洞绕过签名验证检查并加载未被Cisco签名的软件镜像。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

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200219-ucs-boot-bypass

Reference

https://vigilance.fr/vulnerability/Cisco-UCS-C-Series-Rack-Server-privilege-escalation-via-UEFI-Secure-Boot-Bypass-31640

Impacted products

Name
Cisco UCS C-Series Rack Servers

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-1736"
    }
  },
  "description": "Cisco UCS C-Series\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u6b3eC\u7cfb\u5217\u673a\u67b6\u5f0f\u670d\u52a1\u5668\u3002\n\nCisco UCS C-Series Rack Servers\u4e2d\u7684\u56fa\u4ef6\u5b58\u5728\u6570\u636e\u4f2a\u9020\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u65e0\u6cd5\u6b63\u786e\u9a8c\u8bc1\u670d\u52a1\u5668\u56fa\u4ef6\u66f4\u65b0\u955c\u50cf\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u7b7e\u540d\u9a8c\u8bc1\u68c0\u67e5\u5e76\u52a0\u8f7d\u672a\u88abCisco\u7b7e\u540d\u7684\u8f6f\u4ef6\u955c\u50cf\u3002",
  "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://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200219-ucs-boot-bypass",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-14317",
  "openTime": "2020-02-28",
  "patchDescription": "Cisco UCS C-Series\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u6b3eC\u7cfb\u5217\u673a\u67b6\u5f0f\u670d\u52a1\u5668\u3002\r\n\r\nCisco UCS C-Series Rack Servers\u4e2d\u7684\u56fa\u4ef6\u5b58\u5728\u6570\u636e\u4f2a\u9020\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u65e0\u6cd5\u6b63\u786e\u9a8c\u8bc1\u670d\u52a1\u5668\u56fa\u4ef6\u66f4\u65b0\u955c\u50cf\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u7b7e\u540d\u9a8c\u8bc1\u68c0\u67e5\u5e76\u52a0\u8f7d\u672a\u88abCisco\u7b7e\u540d\u7684\u8f6f\u4ef6\u955c\u50cf\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": "Cisco UCS C-Series\u6570\u636e\u4f2a\u9020\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Cisco UCS C-Series Rack Servers"
  },
  "referenceLink": "https://vigilance.fr/vulnerability/Cisco-UCS-C-Series-Rack-Server-privilege-escalation-via-UEFI-Secure-Boot-Bypass-31640",
  "serverity": "\u4e2d",
  "submitTime": "2020-02-20",
  "title": "Cisco UCS C-Series\u6570\u636e\u4f2a\u9020\u6f0f\u6d1e"
}

CVE-2019-1736 (GCVE-0-2019-1736)

Vulnerability from cvelistv5 – Published: 2020-09-23 00:26 – Updated: 2024-11-13 18:05

Summary

A vulnerability in the firmware of the Cisco UCS C-Series Rack Servers could allow an authenticated, physical attacker to bypass Unified Extensible Firmware Interface (UEFI) Secure Boot validation checks and load a compromised software image on an affected device. The vulnerability is due to improper validation of the server firmware upgrade images. An attacker could exploit this vulnerability by installing a server firmware version that would allow the attacker to disable UEFI Secure Boot. A successful exploit could allow the attacker to bypass the signature validation checks that are done by UEFI Secure Boot technology and load a compromised software image on the affected device. A compromised software image is any software image that has not been digitally signed by Cisco.

Severity ?

6.2 (Medium)


                        
                          CVSS:3.0/AV:P/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-347

Assigner

cisco

References

URL

Tags

https://tools.cisco.com/security/center/content/C…

vendor-advisoryx_refsource_CISCO

Impacted products

	Vendor	Product	Version
	Cisco	Cisco Identity Services Engine Software	Affected: n/a

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T18:28:42.301Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "20200219 Multiple Cisco UCS-Based Products UEFI Secure Boot Bypass Vulnerability",
            "tags": [
              "vendor-advisory",
              "x_refsource_CISCO",
              "x_transferred"
            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200219-ucs-boot-bypass"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2019-1736",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-13T17:18:03.065097Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-13T18:05:16.337Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cisco Identity Services Engine Software",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2020-02-19T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in the firmware of the Cisco UCS C-Series Rack Servers could allow an authenticated, physical attacker to bypass Unified Extensible Firmware Interface (UEFI) Secure Boot validation checks and load a compromised software image on an affected device. The vulnerability is due to improper validation of the server firmware upgrade images. An attacker could exploit this vulnerability by installing a server firmware version that would allow the attacker to disable UEFI Secure Boot. A successful exploit could allow the attacker to bypass the signature validation checks that are done by UEFI Secure Boot technology and load a compromised software image on the affected device. A compromised software image is any software image that has not been digitally signed by Cisco."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
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      ],
      "metrics": [
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            "attackComplexity": "LOW",
            "attackVector": "PHYSICAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.2,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:P/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
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        "shortName": "cisco"
      },
      "references": [
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          "name": "20200219 Multiple Cisco UCS-Based Products UEFI Secure Boot Bypass Vulnerability",
          "tags": [
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          ],
          "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200219-ucs-boot-bypass"
        }
      ],
      "source": {
        "advisory": "cisco-sa-20200219-ucs-boot-bypass",
        "defect": [
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            "CSCvq27803"
          ]
        ],
        "discovery": "INTERNAL"
      },
      "title": "Multiple Cisco UCS-Based Products UEFI Secure Boot Bypass Vulnerability",
      "x_legacyV4Record": {
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          "ASSIGNER": "psirt@cisco.com",
          "DATE_PUBLIC": "2020-02-19T16:00:00",
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          "STATE": "PUBLIC",
          "TITLE": "Multiple Cisco UCS-Based Products UEFI Secure Boot Bypass Vulnerability"
        },
        "affects": {
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                    {
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                      "version": {
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        "exploit": [
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        "impact": {
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            "vectorString": "CVSS:3.0/AV:P/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
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          ]
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}

Sightings

Author	Source	Type	Date

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.

Action not permitted

CNVD-2020-14317

CVE-2019-1736 (GCVE-0-2019-1736)

Tags

Sightings

Nomenclature