Viber内存破坏漏洞

CVE编号

CVE-2019-18800

利用情况

暂无

补丁情况

N/A

披露时间

2019-11-07

漏洞描述

Viber through 11.7.0.5 allows a remote attacker who can capture a victim's internet traffic to steal their Viber account, because not all Viber protocol traffic is encrypted. TCP data packet 9 on port 4244 from the victim's device contains cleartext information such as the device model and OS version, IMSI, and 20 bytes of udid in a binary format, which is located at offset 0x14 of this packet. Then, the attacker installs Viber on his device, initiates the registration process for any phone number, but doesn't enter a pin from SMS. Instead, he closes Viber. Next, the attacker rewrites his udid with the victim's udid, modifying the viber_udid file, which is located in the Viber preferences folder. (The udid is stored in a hexadecimal format.) Finally, the attacker starts Viber again and enters the pin from SMS.

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://thesamarkand.tumblr.com/post/188785277609/viber-messenger-remote-acco...

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
	应用	rakuten	viber	*		Up to (including) 11.7.0.5

CVSS3评分 8.8

• 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 需要
• 可用性 高
• 保密性 高
• 完整性 高

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CWE-ID 漏洞类型 CWE-311 敏感数据加密缺失 CWE-319 敏感数据的明文传输