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CVE-2021-34706— Cisco Identity Services Engine XML External Entity Injection Vulnerability

Quick assessment

Affected
Cisco Cisco Identity Services Engine 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 Identity Services Engine（ISE）是美国思科（Cisco）公司的一款基于身份的环境感知平台（ISE身份服务引擎）。该平台通过收集网络、用户和设备中的实时信息，制定并实施相应策略来监管网络。 Cisco Identity Services Engine (ISE) 存在代码问题漏洞，该漏洞源于在解析某些 XML 文件时对 XML 外部实体 (XXE) 条目的处理不当造成的。攻击者可以通过上传包含对外部实体的引用的精心设计的 XML 文件来利用此漏洞。成功的利用可能允许攻击

CVSS 6.4 · Medium EPSS 0.74% · P53
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I. Basic Information for CVE-2021-34706

Vulnerability Information
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Vulnerability Title
Cisco Identity Services Engine XML External Entity Injection Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the web-based management interface of Cisco Identity Services Engine (ISE) could allow an authenticated, remote attacker to access sensitive information or conduct a server-side request forgery (SSRF) attack through an affected device. This vulnerability is due to improper handling of XML External Entity (XXE) entries when parsing certain XML files. An attacker could exploit this vulnerability by uploading a crafted XML file that contains references to external entities. A successful exploit could allow the attacker to retrieve files from the local system, resulting in the disclosure of sensitive information, or cause the web application to perform arbitrary HTTP requests on behalf of the attacker.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
XML外部实体引用的不恰当限制(XXE)
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Identity Services Engine 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Identity Services Engine（ISE）是美国思科（Cisco）公司的一款基于身份的环境感知平台（ISE身份服务引擎）。该平台通过收集网络、用户和设备中的实时信息，制定并实施相应策略来监管网络。 Cisco Identity Services Engine (ISE) 存在代码问题漏洞，该漏洞源于在解析某些 XML 文件时对 XML 外部实体 (XXE) 条目的处理不当造成的。攻击者可以通过上传包含对外部实体的引用的精心设计的 XML 文件来利用此漏洞。成功的利用可能允许攻击
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 Identity Services Engine Software n/a -

II. Public POCs for CVE-2021-34706

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III. Intelligence Information for CVE-2021-34706

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Vendor Advisories for CVE-2021-34706 (1)

Same Patch Batch · Cisco · 2021-10-06 · 23 CVEs total

CVE-2021-34710 8.8 HIGH Cisco ATA 190 Series Analog Telephone Adapter Software Vulnerabilities
CVE-2021-34735 8.8 HIGH Cisco ATA 190 Series Analog Telephone Adapter Software Vulnerabilities
CVE-2021-34748 8.8 HIGH Cisco Intersight Virtual Appliance Command Injection Vulnerability
CVE-2021-34698 8.6 HIGH Cisco Web Security Appliance Proxy Service Denial of Service Vulnerability
CVE-2021-1594 7.5 HIGH Cisco Identity Services Engine Privilege Escalation Vulnerability
CVE-2021-34788 7.0 HIGH Cisco AnyConnect Secure Mobility Client for Linux and Mac OS with VPN Posture (HostScan) M
CVE-2021-34742 6.1 MEDIUM Cisco Vision Dynamic Signage Director Reflected Cross-Site Scripting Vulnerability
CVE-2021-1534 5.8 MEDIUM Cisco Email Security Appliance URL Filtering Bypass Vulnerability
CVE-2021-34711 5.5 MEDIUM Cisco IP Phone Software Arbitrary File Read Vulnerability
CVE-2021-34766 5.4 MEDIUM Cisco Smart Software Manager Privilege Escalation Vulnerability
CVE-2021-34744 4.9 MEDIUM Cisco Business 220 Series Smart Switches Static Key and Password Vulnerabilities
CVE-2021-34757 4.9 MEDIUM Cisco Business 220 Series Smart Switches Static Key and Password Vulnerabilities
CVE-2021-34772 4.7 MEDIUM Cisco Orbital Open Redirect Vulnerability
CVE-2021-34758 4.4 MEDIUM Cisco TelePresence Collaboration Endpoint and RoomOS Software Denial of Service Vulnerabi
CVE-2021-34775 4.3 MEDIUM Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabiliti
CVE-2021-34776 4.3 MEDIUM Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabiliti
CVE-2021-34777 4.3 MEDIUM Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabiliti
CVE-2021-34778 4.3 MEDIUM Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabiliti
CVE-2021-34779 4.3 MEDIUM Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabiliti
CVE-2021-34780 4.3 MEDIUM Cisco Small Business 220 Series Smart Switches Link Layer Discovery Protocol Vulnerabiliti

Showing top 20 of 23 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Cisco Identity Services Engine Software
Same vendor: Cisco
Same weakness: CWE-611

V. Comments for CVE-2021-34706

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