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CVE-2022-20686

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 0.97% · P60

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2022-20686

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Multiple vulnerabilities in the Link Layer Discovery Protocol (LLDP) functionality of Cisco ATA 190 Series Analog Telephone Adapter firmware could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device and cause the LLDP service to restart. These vulnerabilities are due to missing length validation of certain LLDP packet header fields. An attacker could exploit these vulnerabilities by sending a malicious LLDP packet to an affected device. A successful exploit could allow the attacker to execute code on the affected device and cause LLDP to restart unexpectedly, resulting in a denial of service (DoS) condition.
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
长度参数不一致性处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco ATA 190 代码注入漏洞
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-2022-20686

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III. Intelligence Information for CVE-2022-20686

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Vendor Advisories for CVE-2022-20686 (2)

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

CVE-2022-20691 5.3 MEDIUM Cisco ATA 190 资源管理错误漏洞
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

IV. Related Vulnerabilities

Same product: Cisco Analog Telephone Adaptor (ATA) Software
Same vendor: Cisco
Same weakness: CWE-130

V. Comments for CVE-2022-20686

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