cnvd - cnvd-2020-03762

cnvd-2020-03762

Vulnerability from cnvd

Title: Cisco IOS XR BGP属性拒绝服务漏洞

Description:

Cisco IOS XR软件是用于服务提供商网络的模块化和完全分布式的网络操作系统。

Cisco IOS XR的边界网关协议(BGP)功能存在拒绝服务漏洞。该漏洞源于对包含特定BGP属性的BGP更新消息的处理不当。远程未认证攻击者可通过发送包含特定畸形属性的BGP更新消息利用该漏洞导致BGP进程意外重新启动，从而可导致拒绝服务。

Severity: 中

Patch Name: Cisco IOS XR BGP属性拒绝服务漏洞的补丁

Patch Description:

Cisco IOS XR软件是用于服务提供商网络的模块化和完全分布式的网络操作系统。

Cisco IOS XR的边界网关协议(BGP)功能存在拒绝服务漏洞。该漏洞源于对包含特定BGP属性的BGP更新消息的处理不当。远程未认证攻击者可通过发送包含特定畸形属性的BGP更新消息利用该漏洞导致BGP进程意外重新启动，从而可导致拒绝服务。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-20200122-ios-xr-bgp-dos

Reference: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200122-ios-xr-bgp-dos

Impacted products

Name
Cisco IOS XR

Show details on source website

JSON

To clipboard

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    "cve": {
      "cveNumber": "CVE-2019-15989",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2019-15989"
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  "serverity": "\u4e2d",
  "submitTime": "2020-01-23",
  "title": "Cisco IOS XR BGP\u5c5e\u6027\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2019-15989 (GCVE-0-2019-15989)

Vulnerability from cvelistv5

Published

2020-01-26 04:30

Modified

2024-11-15 17:46

Severity ?

8.6 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

CWE

CWE-754

Summary

A vulnerability in the implementation of the Border Gateway Protocol (BGP) functionality in Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to incorrect processing of a BGP update message that contains a specific BGP attribute. An attacker could exploit this vulnerability by sending BGP update messages that include a specific, malformed attribute to be processed by an affected system. A successful exploit could allow the attacker to cause the BGP process to restart unexpectedly, resulting in a DoS condition. The Cisco implementation of BGP accepts incoming BGP traffic only from explicitly defined peers. To exploit this vulnerability, the malicious BGP update message would need to come from a configured, valid BGP peer or would need to be injected by the attacker into the victim’s BGP network on an existing, valid TCP connection to a BGP peer.

References

▼	URL	Tags
	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200122-ios-xr-bgp-dos	vendor-advisory, x_refsource_CISCO

Impacted products

	Vendor	Product	Version
	Cisco	Cisco IOS XR Software	Version: unspecified < 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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