cisco adaptive_security_appliance_software 跨界内存写

CVE编号

CVE-2022-20737

利用情况

暂无

补丁情况

N/A

披露时间

2022-05-03

漏洞描述

A vulnerability in the handler for HTTP authentication for resources accessed through the Clientless SSL VPN portal of Cisco Adaptive Security Appliance (ASA) Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device or to obtain portions of process memory from an affected device. This vulnerability is due to insufficient bounds checking when parsing specific HTTP authentication messages. An attacker could exploit this vulnerability by sending malicious traffic to an affected device acting as a VPN Gateway. To send this malicious traffic, an attacker would need to control a web server that can be accessed through the Clientless SSL VPN portal. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition, or to retrieve bytes from the device process memory that may contain sensitive information.

解决建议

建议您更新当前系统或软件至最新版，完成漏洞的修复。

参考链接
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-s...

受影响软件情况

#	类型	厂商	产品	版本	影响面
1
	运行在以下环境
	系统	cisco	adaptive_security_appliance_software	*		Up to (excluding) 9.12.4.38
	运行在以下环境
	系统	cisco	adaptive_security_appliance_software	*	From (including) 9.13.0	Up to (excluding) 9.14.4
	运行在以下环境
	系统	cisco	adaptive_security_appliance_software	*	From (including) 9.15.0	Up to (excluding) 9.15.1.21
	运行在以下环境
	系统	cisco	adaptive_security_appliance_software	*	From (including) 9.16.0	Up to (excluding) 9.16.2.14
	运行在以下环境
	系统	cisco	adaptive_security_appliance_software	*	From (including) 9.17.0	Up to (excluding) 9.17.1.7

CVSS3评分 7.1

• 攻击路径 网络
• 攻击复杂度 低
• 权限要求 低
• 影响范围 未更改
• 用户交互 无
• 可用性 高
• 保密性 低
• 完整性 无

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H

CWE-ID	漏洞类型
CWE-787	跨界内存写

Exp相关链接

- avd.aliyun.com