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CVE-2020-3556— Cisco AnyConnect Secure Mobility Client 输入验证错误漏洞

一分钟漏洞结论

影响对象
Cisco Cisco AnyConnect Secure Mobility Client
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。

Cisco Anyconnect Secure Mobility Client是美国思科（Cisco）公司的一款用于安全连接的VPN客户端软件。 Cisco AnyConnect Secure Mobility Client IPC存在输入验证错误漏洞，该漏洞允许攻击者在受影响系统上运行代码。

CVSS 7.3 · High EPSS 0.45% · P37
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一、 漏洞 CVE-2020-3556 基础信息

漏洞信息
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Vulnerability Title
Cisco AnyConnect Secure Mobility Client Arbitrary Code Execution Vulnerability
来源: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the interprocess communication (IPC) channel of Cisco AnyConnect Secure Mobility Client Software could allow an authenticated, local attacker to cause a targeted AnyConnect user to execute a malicious script. The vulnerability is due to a lack of authentication to the IPC listener. An attacker could exploit this vulnerability by sending crafted IPC messages to the AnyConnect client IPC listener. A successful exploit could allow an attacker to cause the targeted AnyConnect user to execute a script. This script would execute with the privileges of the targeted AnyConnect user. In order to successfully exploit this vulnerability, there must be an ongoing AnyConnect session by the targeted user at the time of the attack. To exploit this vulnerability, the attacker would also need valid user credentials on the system upon which the AnyConnect client is being run. Cisco has not released software updates that address this vulnerability.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
来源: CVE Program / CVE List V5
Vulnerability Title
Cisco AnyConnect Secure Mobility Client 输入验证错误漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Cisco Anyconnect Secure Mobility Client是美国思科（Cisco）公司的一款用于安全连接的VPN客户端软件。 Cisco AnyConnect Secure Mobility Client IPC存在输入验证错误漏洞，该漏洞允许攻击者在受影响系统上运行代码。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD

受影响产品

厂商 产品 影响版本 CPE 订阅
Cisco Cisco AnyConnect Secure Mobility Client n/a -

二、漏洞 CVE-2020-3556 的公开POC

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三、漏洞 CVE-2020-3556 的情报信息

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CVE-2020-3556 厂商安全公告 (1)

同批安全公告 · Cisco · 2020-11-06 · 共 27 条

CVE-2020-3603 7.8 HIGH Cisco Webex Network Recording Player 缓冲区错误漏洞
CVE-2020-3573 7.8 HIGH Cisco Webex Network Recording Player 缓冲区错误漏洞
CVE-2020-3593 7.8 HIGH Cisco SD-WAN vManage Software 安全漏洞
CVE-2020-3594 7.8 HIGH Cisco SD-WAN vEdge 安全漏洞
CVE-2020-3600 7.8 HIGH Cisco SD-WAN vEdge 安全漏洞
CVE-2020-3595 7.8 HIGH Cisco SD-WAN vEdge 访问控制错误漏洞
CVE-2020-3604 7.8 HIGH Cisco Webex Network Recording Player 缓冲区错误漏洞
CVE-2020-3574 7.5 HIGH Cisco IP Phone 8800 Series和Cisco IP Phone 7800 Series 安全漏洞
CVE-2020-3588 7.3 HIGH Cisco Webex Meetings Desktop App 路径遍历漏洞
CVE-2020-27129 6.7 MEDIUM Cisco SD-WAN vManage Software 参数注入漏洞
CVE-2020-3592 6.5 MEDIUM Cisco SD-WAN vManage Software 访问控制错误漏洞
CVE-2020-26084 6.5 MEDIUM Cisco?Edge Fog Fabric 授权问题漏洞
CVE-2020-27128 6.5 MEDIUM Cisco SD-WAN vManage Software 路径遍历漏洞
CVE-2020-3590 6.4 MEDIUM Cisco SD-WAN vManage Software 跨站脚本漏洞
CVE-2020-3587 6.4 MEDIUM Cisco SD-WAN vManage Software 跨站脚本漏洞
CVE-2020-3371 6.3 MEDIUM Cisco Integrated Management Controller 操作系统命令注入漏洞
CVE-2020-3551 6.1 MEDIUM Cisco Identity Services Engine 跨站脚本漏洞
CVE-2020-27123 5.5 MEDIUM Cisco AnyConnect Secure Mobility Client for Windows 安全漏洞
CVE-2020-26083 4.8 MEDIUM Cisco Identity Services Engine 跨站脚本漏洞
CVE-2020-27121 4.3 MEDIUM Cisco Unified Communications Manager 安全漏洞

显示前 20 条，共 27 条。 查看全部 → →

IV. Related Vulnerabilities

Same product: Cisco AnyConnect Secure Mobility Client
Same vendor: Cisco
Same weakness: CWE-20

V. Comments for CVE-2020-3556

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