Riello NetMan内存破坏漏洞

CVE编号

CVE-2017-6900

利用情况

暂无

补丁情况

N/A

披露时间

2019-07-04

漏洞描述

An issue was discovered in Riello NetMan 204 14-2 and 15-2. The issue is with the login script and wrongpass Python script used for authentication. When calling wrongpass, the variables $VAL0 and $VAL1 should be enclosed in quotes to prevent the potential for Bash command injection. Further to this, VAL0 and VAL1 should be sanitised to ensure they do not contain malicious characters. Passing it the username of '-' will cause it to time out and log the user in because of poor error handling. This will log the attacker in as an administrator where the telnet / ssh services can be enabled, and the credentials for local users can be reset. Also, login.cgi accepts the username as a GET parameter, so login can be achieved by browsing to the /cgi-bin/login.cgi?username=-%20a URI.

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://blog.synack.co.uk/2017/01/31/my-first-exploit-db-post/
https://web.archive.org/web/20170205100702/https://blog.synack.co.uk/2017/01/...

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	riello-ups	netman_204_firmware	14-2	-
	运行在以下环境
	系统	riello-ups	netman_204_firmware	15-2	-
	运行在以下环境
	硬件	riello-ups	netman_204	-	-

CVSS3评分 9.8

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

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CWE-ID 漏洞类型