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CiscoCVE-2019-1711

HistoryApr 17, 2019 - 10:29 p.m.

CVE-2019-1711

2019-04-1722:29:00

CWE-20

cisco

web.nvd.nist.gov

cve-2019-1711

cisco

ios xr

emsd

grpc

denial of service

vulnerability

nvd

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

7.6

Confidence

High

EPSS

0.001

Percentile

48.4%

JSON

A vulnerability in the Event Management Service daemon (emsd) of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper handling of gRPC requests. An attacker could exploit this vulnerability by repeatedly sending unauthenticated gRPC requests to the affected device. A successful exploit could cause the emsd process to crash, resulting in a DoS condition. Resolved in Cisco IOS XR 6.5.1 and later.

Affected configurations

Nvd

Vulners

Node

ciscoios_xrRange6.1.0–6.5.1

VendorProductVersionCPE
ciscoios_xr*cpe:2.3:o:cisco:ios_xr:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
cisco	ios_xr	*	cpe:2.3:o:cisco:ios_xr::::::::

CNA Affected

[
  {
    "product": "Cisco IOS XR Software",
    "vendor": "Cisco",
    "versions": [
      {
        "lessThan": "6.5.1",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]

References

www.securityfocus.com/bid/108017

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190417-ios-xr-dos

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

7.6

Confidence

High

EPSS

0.001

Percentile

48.4%

JSON

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