Lucene search

[email protected]CVE-2020-3165

HistoryFeb 26, 2020 - 5:15 p.m.

CVE-2020-3165

2020-02-2617:15:12

CWE-798

[email protected]

web.nvd.nist.gov

cisco

nx-os software

vulnerability

bgp

md5 authentication

remote attacker

nvd

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

8.2 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N

8.2 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

50.0%

JSON

A vulnerability in the implementation of Border Gateway Protocol (BGP) Message Digest 5 (MD5) authentication in Cisco NX-OS Software could allow an unauthenticated, remote attacker to bypass MD5 authentication and establish a BGP connection with the device. The vulnerability occurs because the BGP MD5 authentication is bypassed if the peer does not have MD5 authentication configured, the NX-OS device does have BGP MD5 authentication configured, and the NX-OS BGP virtual routing and forwarding (VRF) name is configured to be greater than 19 characters. An attacker could exploit this vulnerability by attempting to establish a BGP session with the NX-OS peer. A successful exploit could allow the attacker to establish a BGP session with the NX-OS device without MD5 authentication. The Cisco implementation of the BGP protocol accepts incoming BGP traffic only from explicitly configured peers. To exploit this vulnerability, an attacker must send the malicious packets over a TCP connection that appears to come from a trusted BGP peer. To do so, the attacker must obtain information about the BGP peers in the affected system’s trusted network.

Affected configurations

NVD

Node

cisconexus_3016Match-

cisconexus_3048Match-

cisconexus_3064Match-

cisconexus_3064-tMatch-

cisconexus_31108pc-vMatch-

cisconexus_31108tc-vMatch-

cisconexus_31128pqMatch-

cisconexus_3132c-zMatch-

cisconexus_3132qMatch-

cisconexus_3132q-vMatch-

cisconexus_3132q-xlMatch-

cisconexus_3164qMatch-

cisconexus_3172Match-

cisconexus_3172pq-xlMatch-

cisconexus_3172tqMatch-

cisconexus_3172tq-32tMatch-

cisconexus_3172tq-xlMatch-

cisconexus_3232c_Match-

cisconexus_3264c-eMatch-

cisconexus_3264qMatch-

cisconexus_3408-sMatch-

cisconexus_34180ycMatch-

cisconexus_3432d-sMatch-

cisconexus_3464cMatch-

cisconexus_3524Match-

cisconexus_3524-xMatch-

cisconexus_3524-xlMatch-

cisconexus_3548Match-

cisconexus_3548-xMatch-

cisconexus_3548-xlMatch-

cisconexus_36180yc-rMatch-

cisconexus_3636c-rMatch-

cisconexus_9000vMatch-

cisconexus_92160yc-xMatch-

cisconexus_92300ycMatch-

cisconexus_92304qcMatch-

cisconexus_92348gc-xMatch-

cisconexus_9236cMatch-

cisconexus_9272qMatch-

cisconexus_93108tc-exMatch-

cisconexus_93108tc-fxMatch-

cisconexus_93120txMatch-

cisconexus_93128txMatch-

cisconexus_93180lc-exMatch-

cisconexus_93180yc-exMatch-

cisconexus_93180yc-fxMatch-

cisconexus_93216tc-fx2Match-

cisconexus_93240yc-fx2Match-

cisconexus_9332cMatch-

cisconexus_9332pqMatch-

cisconexus_93360yc-fx2Match-

cisconexus_9336c-fx2Match-

cisconexus_9336pq_aci_spineMatch-

cisconexus_9348gc-fxpMatch-

cisconexus_9364cMatch-

cisconexus_9372pxMatch-

cisconexus_9372px-eMatch-

cisconexus_9372txMatch-

cisconexus_9372tx-eMatch-

cisconexus_9396pxMatch-

cisconexus_9396txMatch-

cisconexus_9504Match-

cisconexus_9508Match-

cisconexus_9516Match-

AND

cisconx-osMatch9.2\(1\)

cisconx-osMatch9.2\(2\)

cisconx-osMatch9.2\(3\)

cisconx-osMatch9.3\(1\)

CPENameOperatorVersion
cisco:nx-oscisco nx-oseq9.2\(1\)
cisco:nx-oscisco nx-oseq9.2\(2\)
cisco:nx-oscisco nx-oseq9.2\(3\)
cisco:nx-oscisco nx-oseq9.3\(1\)

CPE	Name	Operator	Version
cisco:nx-os	cisco nx-os	eq	9.2\(1\)
cisco:nx-os	cisco nx-os	eq	9.2\(2\)
cisco:nx-os	cisco nx-os	eq	9.2\(3\)
cisco:nx-os	cisco nx-os	eq	9.3\(1\)

CNA Affected

[
  {
    "product": "Cisco NX-OS Software",
    "vendor": "Cisco",
    "versions": [
      {
        "status": "affected",
        "version": "9.2(1)"
      }
    ]
  }
]

References

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200226-nxos-bgpmd5

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

8.2 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N

8.2 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

50.0%

JSON

Related for CVE-2020-3165

nessus2 nvd1 prion1 cvelist1 cisco1