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cnvd-2019-08717
Vulnerability from cnvd
Title
Cisco IOS和IOS XE输入验证漏洞（CNVD-2019-08717）
Description
Cisco IOS和IOS XE都是美国思科（Cisco）公司的一套为其网络设备开发的操作系统。
Cisco IOS和IOS XE中的Network-Based Application Recognition (NBAR)功能存在输入验证漏洞，该漏洞源于程序存在解析问题，远程攻击者可通过发送特制的DNS数据包利用该漏洞造成受影响的设备重新加载，导致拒绝服务。
Severity
高
VLAI Severity ?
Patch Name
Cisco IOS和IOS XE输入验证漏洞（CNVD-2019-08717）的补丁
Patch Description
Cisco IOS和IOS XE都是美国思科（Cisco）公司的一套为其网络设备开发的操作系统。
Cisco IOS和IOS XE中的Network-Based Application Recognition (NBAR)功能存在输入验证漏洞，该漏洞源于程序存在解析问题，远程攻击者可通过发送特制的DNS数据包利用该漏洞造成受影响的设备重新加载，导致拒绝服务。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-20190327-nbar
Reference
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327-nbar
Impacted products
| Name | ['Cisco IOS XE', 'Cisco IOS'] |
|---|
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CVE-2019-1739 (GCVE-0-2019-1739)
Vulnerability from cvelistv5
Published
2019-03-27 23:20
Modified
2024-09-16 20:07
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A vulnerability in the Network-Based Application Recognition (NBAR) feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. This vulnerability is due to a parsing issue on DNS packets. An attacker could exploit this vulnerability by sending crafted DNS packets through routers that are running an affected version and have NBAR enabled. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition.
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Cisco | Cisco IOS and Cisco IOS-XE Software |
Version: 3.16.0S Version: 3.16.1S Version: 3.16.0aS Version: 3.16.1aS Version: 3.16.2S Version: 3.16.2aS Version: 3.16.0bS Version: 3.16.0cS Version: 3.16.3S Version: 3.16.2bS Version: 3.16.3aS Version: 3.16.4S Version: 3.16.4aS Version: 3.16.4bS Version: 3.16.4gS Version: 3.16.5S Version: 3.16.4cS Version: 3.16.4dS Version: 3.16.4eS Version: 3.16.5aS Version: 3.17.0S Version: 3.17.1S Version: 3.17.2S Version: 3.17.1aS Version: 3.17.3S Version: 3.17.4S Version: 3.2.0JA Version: 16.2.1 Version: 16.2.2 Version: 16.3.1 Version: 16.3.2 Version: 16.3.3 Version: 16.3.1a Version: 16.3.4 Version: 16.4.1 Version: 16.4.2 Version: 16.4.3 Version: 16.5.1 Version: 16.5.1a Version: 16.5.1b Version: 3.18.0aS Version: 3.18.0S Version: 3.18.1S Version: 3.18.2S Version: 3.18.3S Version: 3.18.4S Version: 3.18.0SP Version: 3.18.1SP Version: 3.18.1aSP Version: 3.18.1gSP Version: 3.18.1bSP Version: 3.18.1cSP Version: 3.18.2SP Version: 3.18.1hSP Version: 3.18.2aSP Version: 3.18.1iSP |
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"reference_data": [
{
"name": "20190327 Cisco IOS and IOS XE Software Network-Based Application Recognition Denial of Service Vulnerabilities",
"refsource": "CISCO",
"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327-nbar"
},
{
"name": "107597",
"refsource": "BID",
"url": "http://www.securityfocus.com/bid/107597"
}
]
},
"source": {
"advisory": "cisco-sa-20190327-nbar",
"defect": [
[
"CSCvb51688",
"CSCvc94856",
"CSCvc99155",
"CSCvf01501"
]
],
"discovery": "INTERNAL"
}
}
}
},
"cveMetadata": {
"assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"assignerShortName": "cisco",
"cveId": "CVE-2019-1739",
"datePublished": "2019-03-27T23:20:12.539060Z",
"dateReserved": "2018-12-06T00:00:00",
"dateUpdated": "2024-09-16T20:07:37.827Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
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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.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- 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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