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CVE-2019-1766— Cisco IP Phone 8800 Series File Upload Denial of Service Vulnerability

Quick assessment

Affected
Cisco Cisco IP Phone 8800 Series 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 IP Phone 8800 Series是美国思科（Cisco）公司的一款8800系列的IP电话。Session Initiation Protocol（SIP）Software是其中的一款会话发起协议软件。 Cisco IP Phone 8800 Series中的SIP软件12.5(1)SR1之前版本的基于Web的管理界面存在输入验证漏洞，该漏洞源于程序没有限制可以写入到磁盘中的文件最大值。远程攻击者可通过发送特制的远程连接请求利用该漏洞造成应用程序运行异常并导致拒绝服务（磁盘空间大量占用）

AI Predicted 5.9 Difficulty: Easy EPSS 1.53% · P74
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I. Basic Information for CVE-2019-1766

Vulnerability Information
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Vulnerability Title
Cisco IP Phone 8800 Series File Upload Denial of Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the web-based management interface of Session Initiation Protocol (SIP) Software for Cisco IP Phone 8800 Series could allow an unauthenticated, remote attacker to cause high disk utilization, resulting in a denial of service (DoS) condition. The vulnerability exists because the affected software does not restrict the maximum size of certain files that can be written to disk. An attacker who has valid administrator credentials for an affected system could exploit this vulnerability by sending a crafted, remote connection request to an affected system. A successful exploit could allow the attacker to write a file that consumes most of the available disk space on the system, causing application functions to operate abnormally and leading to a DoS condition. This vulnerability affects Cisco IP Phone 8800 Series products running a SIP Software release prior to 12.5(1)SR1.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco IP Phone 8800 Series Session Initiation Protocol软件输入验证漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco IP Phone 8800 Series是美国思科（Cisco）公司的一款8800系列的IP电话。Session Initiation Protocol（SIP）Software是其中的一款会话发起协议软件。 Cisco IP Phone 8800 Series中的SIP软件12.5(1)SR1之前版本的基于Web的管理界面存在输入验证漏洞，该漏洞源于程序没有限制可以写入到磁盘中的文件最大值。远程攻击者可通过发送特制的远程连接请求利用该漏洞造成应用程序运行异常并导致拒绝服务（磁盘空间大量占用）
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 IP Phone 8800 Series Software unspecified ~ 12.5(1)SR1 -

II. Public POCs for CVE-2019-1766

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III. Intelligence Information for CVE-2019-1766

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Same Patch Batch · Cisco · 2019-03-22 · 5 CVEs total

CVE-2019-1716 Cisco IP Phone 7800 Series and 8800 Series Remote Code Execution Vulnerability
CVE-2019-1763 Cisco IP Phone 8800 Series Authorization Bypass Vulnerability
CVE-2019-1764 Cisco IP Phone 8800 Series Cross-Site Request Forgery Vulnerability
CVE-2019-1765 Cisco IP Phone 8800 Series Path Traversal Vulnerability

IV. Related Vulnerabilities

Same product: Cisco IP Phone 8800 Series Software
Same vendor: Cisco
Same weakness: CWE-20

V. Comments for CVE-2019-1766

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