Executive Summary

Informations
Name CVE-2019-1686 First vendor Publication 2019-04-17
Vendor Cve Last vendor Modification 2020-10-16

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
Overall CVSS Score 8.6
Base Score 8.6 Environmental Score 8.6
impact SubScore 4 Temporal Score 8.6
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Changed Confidentiality Impact None
Integrity Impact High Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:P/A:N)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A vulnerability in the TCP flags inspection feature for access control lists (ACLs) on Cisco ASR 9000 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to bypass protection offered by a configured ACL on an affected device. The vulnerability is due to incorrect processing of the ACL applied to an interface of an affected device when Cisco Express Forwarding load balancing using the 3-tuple hash algorithm is enabled. An attacker could exploit this vulnerability by sending traffic through an affected device that should otherwise be denied by the configured ACL. An exploit could allow the attacker to bypass protection offered by a configured ACL on the affected device. There are workarounds that address this vulnerability. Affected Cisco IOS XR versions are: Cisco IOS XR Software Release 5.1.1 and later till first fixed. First Fixed Releases: 6.5.2 and later, 6.6.1 and later.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1686

CPE : Common Platform Enumeration

TypeDescriptionCount
Hardware 1
Os 201

Sources (Detail)

Source Url
BID http://www.securityfocus.com/bid/108026
CISCO https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-s...

Alert History

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Date Informations
2023-09-20 01:52:33
  • Multiple Updates
2022-05-05 01:42:21
  • Multiple Updates
2021-11-06 12:37:57
  • Multiple Updates
2020-10-16 17:22:52
  • Multiple Updates
2020-09-10 01:24:55
  • Multiple Updates
2020-05-24 01:28:25
  • Multiple Updates
2020-05-23 02:26:14
  • Multiple Updates
2019-10-10 05:21:00
  • Multiple Updates
2019-04-25 00:19:04
  • Multiple Updates
2019-04-23 13:19:14
  • Multiple Updates
2019-04-19 00:19:04
  • Multiple Updates
2019-04-18 05:18:47
  • First insertion