cnvd - cnvd-2021-22167

cnvd-2021-22167

Vulnerability from cnvd

Title: Cisco IOS XE OS命令注入漏洞

Description:

Cisco IOS XE是美国Cisco公司为其网络设备开发的一套基于Linux内核的模块化操作系统。

Cisco IOS XE的ROMMON存在OS命令注入漏洞。该漏洞源于设置了特定ROMMON变量时对传递给启动脚本的特定函数参数的验证不正确。攻击者可利用该漏洞在系统启动时执行未签名的代码。

Severity: 高

Patch Name: Cisco IOS XE OS命令注入漏洞的补丁

Patch Description:

Cisco IOS XE是美国Cisco公司为其网络设备开发的一套基于Linux内核的模块化操作系统。

Cisco IOS XE的ROMMON存在OS命令注入漏洞。该漏洞源于设置了特定ROMMON变量时对传递给启动脚本的特定函数参数的验证不正确。攻击者可利用该漏洞在系统启动时执行未签名的代码。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-iosxe-romvar-cmd-inj-N56fYbrw

Reference: https://nvd.nist.gov/vuln/detail/CVE-2021-1452

Impacted products

Name
Cisco IOS XE

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-1452",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-1452"
    }
  },
  "description": "Cisco IOS XE\u662f\u7f8e\u56fdCisco\u516c\u53f8\u4e3a\u5176\u7f51\u7edc\u8bbe\u5907\u5f00\u53d1\u7684\u4e00\u5957\u57fa\u4e8eLinux\u5185\u6838\u7684\u6a21\u5757\u5316\u64cd\u4f5c\u7cfb\u7edf\u3002\n\nCisco IOS XE\u7684ROMMON\u5b58\u5728OS\u547d\u4ee4\u6ce8\u5165\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u8bbe\u7f6e\u4e86\u7279\u5b9aROMMON\u53d8\u91cf\u65f6\u5bf9\u4f20\u9012\u7ed9\u542f\u52a8\u811a\u672c\u7684\u7279\u5b9a\u51fd\u6570\u53c2\u6570\u7684\u9a8c\u8bc1\u4e0d\u6b63\u786e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5728\u7cfb\u7edf\u542f\u52a8\u65f6\u6267\u884c\u672a\u7b7e\u540d\u7684\u4ee3\u7801\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-romvar-cmd-inj-N56fYbrw",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-22167",
  "openTime": "2021-03-25",
  "patchDescription": "Cisco IOS XE\u662f\u7f8e\u56fdCisco\u516c\u53f8\u4e3a\u5176\u7f51\u7edc\u8bbe\u5907\u5f00\u53d1\u7684\u4e00\u5957\u57fa\u4e8eLinux\u5185\u6838\u7684\u6a21\u5757\u5316\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nCisco IOS XE\u7684ROMMON\u5b58\u5728OS\u547d\u4ee4\u6ce8\u5165\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u8bbe\u7f6e\u4e86\u7279\u5b9aROMMON\u53d8\u91cf\u65f6\u5bf9\u4f20\u9012\u7ed9\u542f\u52a8\u811a\u672c\u7684\u7279\u5b9a\u51fd\u6570\u53c2\u6570\u7684\u9a8c\u8bc1\u4e0d\u6b63\u786e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5728\u7cfb\u7edf\u542f\u52a8\u65f6\u6267\u884c\u672a\u7b7e\u540d\u7684\u4ee3\u7801\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 IOS XE OS\u547d\u4ee4\u6ce8\u5165\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Cisco IOS XE"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-1452",
  "serverity": "\u9ad8",
  "submitTime": "2021-03-25",
  "title": "Cisco IOS XE OS\u547d\u4ee4\u6ce8\u5165\u6f0f\u6d1e"
}

CVE-2021-1452 (GCVE-0-2021-1452)

Vulnerability from cvelistv5

Published

2021-03-24 20:06

Modified

2024-11-08 23:34

Severity ?

6.8 (Medium) - CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-78

Summary

A vulnerability in the ROM Monitor (ROMMON) of Cisco IOS XE Software for Cisco Catalyst IE3200, IE3300, and IE3400 Rugged Series Switches, Cisco Catalyst IE3400 Heavy Duty Series Switches, and Cisco Embedded Services 3300 Series Switches could allow an unauthenticated, physical attacker to execute unsigned code at system boot time. This vulnerability is due to incorrect validations of specific function arguments passed to a boot script when specific ROMMON variables are set. An attacker could exploit this vulnerability by setting malicious values for a specific ROMMON variable. A successful exploit could allow the attacker to execute unsigned code and bypass the image verification check during the secure boot process of an affected device. To exploit this vulnerability, the attacker would need to have unauthenticated, physical access to the device or obtain privileged access to the root shell on the device.

References

▼	URL	Tags
	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-romvar-cmd-inj-N56fYbrw	vendor-advisory, x_refsource_CISCO

Impacted products

	Vendor	Product	Version
	Cisco	Cisco IOS XE ROMMON Software	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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