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CNVD-2019-08718
Vulnerability from cnvd - Published: 2019-03-29
VLAI Severity ?
Title
Cisco IOS和IOS XE输入验证漏洞（CNVD-2019-08718）
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
Patch Name
Cisco IOS和IOS XE输入验证漏洞（CNVD-2019-08718）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-2019-1740 (GCVE-0-2019-1740)
Vulnerability from cvelistv5 – Published: 2019-03-27 23:25 – Updated: 2024-11-19 19:13
VLAI?
EPSS
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 are 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.
Severity ?
8.6 (High)
CWE
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Cisco | Cisco IOS and Cisco IOS-XE Software |
Affected:
3.16.0S
Affected: 3.16.1S Affected: 3.16.0aS Affected: 3.16.1aS Affected: 3.16.2S Affected: 3.16.2aS Affected: 3.16.0bS Affected: 3.16.0cS Affected: 3.16.3S Affected: 3.16.2bS Affected: 3.16.3aS Affected: 3.16.4S Affected: 3.16.4aS Affected: 3.16.4bS Affected: 3.16.4gS Affected: 3.16.5S Affected: 3.16.4cS Affected: 3.16.4dS Affected: 3.16.4eS Affected: 3.16.5aS Affected: 3.17.0S Affected: 3.17.1S Affected: 3.17.2S Affected: 3.17.1aS Affected: 3.17.3S Affected: 3.17.4S Affected: 3.2.0JA Affected: 16.2.1 Affected: 16.2.2 Affected: 16.3.1 Affected: 16.3.2 Affected: 16.3.3 Affected: 16.3.1a Affected: 16.3.4 Affected: 16.4.1 Affected: 16.4.2 Affected: 16.4.3 Affected: 16.5.1 Affected: 16.5.1a Affected: 16.5.1b Affected: 3.18.0aS Affected: 3.18.0S Affected: 3.18.1S Affected: 3.18.2S Affected: 3.18.3S Affected: 3.18.4S Affected: 3.18.0SP Affected: 3.18.1SP Affected: 3.18.1aSP Affected: 3.18.1gSP Affected: 3.18.1bSP Affected: 3.18.1cSP Affected: 3.18.2SP Affected: 3.18.1hSP Affected: 3.18.2aSP Affected: 3.18.1iSP |
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{
"lang": "eng",
"value": "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 are 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."
}
]
},
"exploit": [
{
"lang": "en",
"value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory."
}
],
"impact": {
"cvss": {
"baseScore": "8.6",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
"version": "3.0"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-20"
}
]
}
]
},
"references": {
"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-2019-1740",
"datePublished": "2019-03-27T23:25:18.976554Z",
"dateReserved": "2018-12-06T00:00:00",
"dateUpdated": "2024-11-19T19:13:41.033Z",
"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 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.
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