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CVE-2020-27131— Cisco Security Manager Java Deserialization Vulnerabilities

Quick assessment

Affected
Cisco Cisco Security Manager
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Cisco Security Manager（CSM）是美国思科（Cisco）公司的一套企业级的管理应用，它主要用于在Cisco网络和安全设备上配置防火墙、VPN和入侵保护安全服务。 Cisco Security Manager 存在代码问题漏洞，该漏洞源于受影响的软件对用户提供的内容进行了不安全的反序列化。攻击者可利用该漏洞可以通过向受影响系统上的特定侦听器发送恶意的序列化Java对象来利用这些漏洞。成功的利用可导致在受影响的设备上执行任意命令。

CVSS 8.1 · High EPSS 87.72% · P100
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I. Basic Information for CVE-2020-27131

Vulnerability Information
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Vulnerability Title
Cisco Security Manager Java Deserialization Vulnerabilities
Source: CVE Program / CVE List V5
Vulnerability Description
Multiple vulnerabilities in the Java deserialization function that is used by Cisco Security Manager could allow an unauthenticated, remote attacker to execute arbitrary commands on an affected device. These vulnerabilities are due to insecure deserialization of user-supplied content by the affected software. An attacker could exploit these vulnerabilities by sending a malicious serialized Java object to a specific listener on an affected system. A successful exploit could allow the attacker to execute arbitrary commands on the device with the privileges of NT AUTHORITY\SYSTEM on the Windows target host. Cisco has not released software updates that address these vulnerabilities.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Security Manager 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Security Manager（CSM）是美国思科（Cisco）公司的一套企业级的管理应用，它主要用于在Cisco网络和安全设备上配置防火墙、VPN和入侵保护安全服务。 Cisco Security Manager 存在代码问题漏洞，该漏洞源于受影响的软件对用户提供的内容进行了不安全的反序列化。攻击者可利用该漏洞可以通过向受影响系统上的特定侦听器发送恶意的序列化Java对象来利用这些漏洞。成功的利用可导致在受影响的设备上执行任意命令。
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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
Cisco Cisco Security Manager n/a -

II. Public POCs for CVE-2020-27131

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III. Intelligence Information for CVE-2020-27131

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Vendor Advisories for CVE-2020-27131 (1)

Same Patch Batch · Cisco · 2020-11-17 · 3 CVEs total

CVE-2020-27130 9.1 CRITICAL Cisco Security Manager Path Traversal Vulnerability
CVE-2020-27125 7.4 HIGH Cisco Security Manager Static Credential Vulnerability

IV. Related Vulnerabilities

Same product: Cisco Security Manager
Same vendor: Cisco
Same weakness: CWE-20

V. Comments for CVE-2020-27131

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