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CiscoCVE-2020-3482

HistoryNov 18, 2020 - 7:15 p.m.

CVE-2020-3482

2020-11-1819:15:12

CWE-269

CWE-284

cisco

web.nvd.nist.gov

cisco

expressway

turn server

vulnerability

unauthorized access

nvd

cve-2020-3482

CVSS2

6.4

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

AI Score

6.7

Confidence

High

EPSS

0.001

Percentile

47.9%

JSON

A vulnerability in the Traversal Using Relays around NAT (TURN) server component of Cisco Expressway software could allow an unauthenticated, remote attacker to bypass security controls and send network traffic to restricted destinations. The vulnerability is due to improper validation of specific connection information by the TURN server within the affected software. An attacker could exploit this issue by sending specially crafted network traffic to the affected software. A successful exploit could allow the attacker to send traffic through the affected software to destinations beyond the application, possibly allowing the attacker to gain unauthorized network access.

Affected configurations

Nvd

Node

ciscoexpresswayRange<x12.6.3

ciscotelepresence_video_communication_serverRange<x12.6.3

VendorProductVersionCPE
ciscoexpressway*cpe:2.3:a:cisco:expressway:*:*:*:*:*:*:*:*
ciscotelepresence_video_communication_server*cpe:2.3:a:cisco:telepresence_video_communication_server:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
cisco	expressway	*	cpe:2.3:a:cisco:expressway::::::::
cisco	telepresence_video_communication_server	*	cpe:2.3:a:cisco:telepresence_video_communication_server::::::::

CNA Affected

[
  {
    "product": "Cisco TelePresence Video Communication Server (VCS) Expressway",
    "vendor": "Cisco",
    "versions": [
      {
        "status": "affected",
        "version": "n/a"
      }
    ]
  }
]

References

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-Expressway-8J3yZ7hV

CVSS2

6.4

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

AI Score

6.7

Confidence

High

EPSS

0.001

Percentile

47.9%

JSON

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