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CVE-2022-20691

Quick assessment

Affected
Cisco Cisco Analog Telephone Adaptor (ATA) Software
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Cisco ATA 190是美国思科（Cisco）公司的一个模拟电话适配器。 Cisco ATA 190 Series 存在安全漏洞，该漏洞源于 Cisco 发现协议和链路层发现协议 (LLDP) 中存在多个漏洞。这些漏洞可能允许攻击者执行代码、导致服务意外重新加载或导致 Cisco 发现协议或 LLDP 数据库损坏受影响的设备。

CVSS 5.3 · Medium EPSS 0.63% · P47
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I. Basic Information for CVE-2022-20691

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the Cisco Discovery Protocol functionality of Cisco ATA 190 Series Adaptive Telephone Adapter firmware could allow an unauthenticated, adjacent attacker to cause a DoS condition of an affected device. This vulnerability is due to missing length validation of certain Cisco Discovery Protocol packet header fields. An attacker could exploit this vulnerability by sending crafted Cisco Discovery Protocol packets to an affected device. A successful exploit could allow the attacker to cause the device to exhaust available memory and cause the service to restart. Cisco has released firmware updates that address this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco ATA 190 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco ATA 190是美国思科（Cisco）公司的一个模拟电话适配器。 Cisco ATA 190 Series 存在安全漏洞，该漏洞源于 Cisco 发现协议和链路层发现协议 (LLDP) 中存在多个漏洞。这些漏洞可能允许攻击者执行代码、导致服务意外重新加载或导致 Cisco 发现协议或 LLDP 数据库损坏受影响的设备。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Cisco Cisco Analog Telephone Adaptor (ATA) Software 1.2.1 -

II. Public POCs for CVE-2022-20691

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III. Intelligence Information for CVE-2022-20691

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Vendor Advisories for CVE-2022-20691 (2)

Same Patch Batch · Cisco · 2022-12-07 · 6 CVEs total

CVE-2022-20690 5.3 MEDIUM Cisco ATA 190 输入验证错误漏洞
CVE-2022-20689 5.3 MEDIUM Cisco ATA 190 输入验证错误漏洞
CVE-2022-20688 5.3 MEDIUM Cisco ATA 190 输入验证错误漏洞
CVE-2022-20687 5.3 MEDIUM Cisco ATA 190 输入验证错误漏洞
CVE-2022-20686 5.3 MEDIUM Cisco ATA 190 代码注入漏洞

IV. Related Vulnerabilities

Same product: Cisco Analog Telephone Adaptor (ATA) Software
Same vendor: Cisco
Same weakness: CWE-400

V. Comments for CVE-2022-20691

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