Vulnerability-Lookup

CNVD-2021-05529

Vulnerability from cnvd - Published: 2021-01-25

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

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

To clipboard

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    "cve": {
      "cveNumber": "CVE-2020-3482",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-3482"
    }
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  "products": {
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  },
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  "serverity": "\u4e2d",
  "submitTime": "2020-11-19",
  "title": "Cisco Expressway Software\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e"
}

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

Vulnerability from cvelistv5 – Published: 2020-11-18 17:41 – Updated: 2024-11-13 17:37

Title

Cisco Expressway Software Unauthorized Access Information Disclosure Vulnerability

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.

Severity

6.5 (Medium)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-11-13 17:11 UTC

CWE

CWE-284

Assigner

cisco CNA under the mitre root

CNA scorecard C 66/100 over 377 records in the last 180 days details

References

1 reference

URL	Tags
https://tools.cisco.com/security/center/content/C…	vendor-advisoryx_refsource_CISCO

Impacted products

1 product

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

Date Public

2020-11-18 00:00

Show details on NVD website

JSON

To clipboard

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  "containers": {
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        "providerMetadata": {
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          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
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        },
        "title": "CISA ADP Vulnrichment"
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      "metrics": [
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            "userInteraction": "NONE",
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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