cnvd - cnvd-2021-05529

cnvd-2021-05529

Vulnerability from cnvd

Title: Cisco Expressway Software信息泄露漏洞

Description:

Cisco Expressway是一款功能强大的网关解决方案，可让您的防火墙之外的用户简单、高度安全地访问所有协同工作。

Cisco Expressway Software X12.6.3之前版本中的TURN服务器组件存在信息泄露漏洞。该漏洞源于TURN服务器未对特定连接信息进行正确验证。攻击者可通过发送特制网络流量利用该漏洞绕过安全控制并将网络流量发送到受限制的目的地，从而可未经授权获得网络访问权限。

Severity: 中

Patch Name: Cisco Expressway Software信息泄露漏洞的补丁

Patch Description:

Cisco Expressway是一款功能强大的网关解决方案，可让您的防火墙之外的用户简单、高度安全地访问所有协同工作。

Cisco Expressway Software X12.6.3之前版本中的TURN服务器组件存在信息泄露漏洞。该漏洞源于TURN服务器未对特定连接信息进行正确验证。攻击者可通过发送特制网络流量利用该漏洞绕过安全控制并将网络流量发送到受限制的目的地，从而可未经授权获得网络访问权限。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-Expressway-8J3yZ7hV

Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-3482

Impacted products

Name
Cisco Cisco Expressway软件 <X12.6.3

Show details on source website

JSON

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}

CVE-2020-3482 (GCVE-0-2020-3482)

Vulnerability from cvelistv5

Published

2020-11-18 17:41

Modified

2024-11-13 17:37

Severity ?

6.5 (Medium) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

CWE

CWE-284

Summary

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.

References

▼	URL	Tags
	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-Expressway-8J3yZ7hV	vendor-advisory, x_refsource_CISCO

Impacted products

	Vendor	Product	Version
	Cisco	Cisco TelePresence Video Communication Server (VCS) Expressway	Version: n/a

Show details on NVD website

JSON

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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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