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CVE-2019-1816— Cisco Web Security Appliance Privilege Escalation Vulnerability

Quick assessment

Affected
Cisco Cisco Web Security Appliance (WSA)
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 Web Security Appliance（WSA）是美国思科（Cisco）公司的一款Web安全设备。该设备提供基于SaaS的访问控制、实时网络报告和追踪、制定安全策略等功能。log subscription subsystem是其中的一个日志订阅子系统。 Cisco WSA中的log subscription子系统存在输入验证错误漏洞。该漏洞源于网络系统或产品未对输入的数据进行正确的验证。

AI Predicted 7.8 Difficulty: Easy EPSS 0.64% · P49
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I. Basic Information for CVE-2019-1816

Vulnerability Information
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Vulnerability Title
Cisco Web Security Appliance Privilege Escalation Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the log subscription subsystem of the Cisco Web Security Appliance (WSA) could allow an authenticated, local attacker to perform command injection and elevate privileges to root. The vulnerability is due to insufficient validation of user-supplied input on the web and command-line interface. An attacker could exploit this vulnerability by authenticating to the affected device and injecting scripting commands in the scope of the log subscription subsystem. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system and elevate privileges to root.
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 Web Security Appliance 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Web Security Appliance（WSA）是美国思科（Cisco）公司的一款Web安全设备。该设备提供基于SaaS的访问控制、实时网络报告和追踪、制定安全策略等功能。log subscription subsystem是其中的一个日志订阅子系统。 Cisco WSA中的log subscription子系统存在输入验证错误漏洞。该漏洞源于网络系统或产品未对输入的数据进行正确的验证。
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 Web Security Appliance (WSA) unspecified ~ 10.1.4-017 -

II. Public POCs for CVE-2019-1816

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III. Intelligence Information for CVE-2019-1816

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Vendor Advisories for CVE-2019-1816 (1)

Same Patch Batch · Cisco · 2019-05-03 · 41 CVEs total

CVE-2019-1692 Cisco Application Policy Infrastructure Controller Web-Based Management Interface Usage In
CVE-2019-1703 Cisco Firepower Threat Defense Software Packet Processing Denial of Service Vulnerability
CVE-2019-1704 Cisco Firepower Threat Defense Software SMB Protocol Preprocessor Detection Engine Denial
CVE-2019-1699 Cisco Firepower Threat Defense Software Command Injection Vulnerability
CVE-2019-1697 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Lightweig
CVE-2019-1694 Cisco Adaptive Security Appliance Software and Cisco Firepower Threat Defense Software TCP
CVE-2019-1695 Cisco Adaptive Security Appliance and Firepower Threat Defense Software Layer 2 Filtering
CVE-2019-1696 Cisco Firepower Threat Defense Software SMB Protocol Preprocessor Detection Engine Denial
CVE-2019-1693 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software WebVPN De
CVE-2019-1687 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software TCP Proxy
CVE-2019-1701 Cisco Adaptive Security Appliance and Firepower Threat Defense Software WebVPN Cross-Site
CVE-2019-1635 Cisco IP Phone 7800 Series and 8800 Series Session Initiation Protocol XML Denial of Servi
CVE-2019-1682 Cisco Application Policy Infrastructure Controller Privilege Escalation Vulnerability
CVE-2019-1589 Cisco Nexus 9000 Series Fabric Switches Application Centric Infrastructure Mode Unmeasured
CVE-2019-1590 Cisco Nexus 9000 Series Fabric Switches Application Centric Infrastructure Mode Insecure F
CVE-2019-1592 Cisco Nexus 9000 Series Fabric Switches Application Centric Infrastructure Mode Privilege
CVE-2018-15462 Cisco Firepower Threat Defense Software TCP Ingress Handler Denial of Service Vulnerabilit
CVE-2019-1586 Cisco Application Policy Infrastructure Controller Recoverable Encryption Key Vulnerabilit
CVE-2019-1587 Cisco Nexus 9000 Series Fabric Switches Application Centric Infrastructure Mode Filter Que
CVE-2018-15388 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software WebVPN De

Showing top 20 of 41 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Cisco Web Security Appliance (WSA)
Same vendor: Cisco
Same weakness: CWE-20

V. Comments for CVE-2019-1816

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