低危 django-basic-auth-ip-whitelist_project django-basic-auth-ip-whitelist 通过时间差异性导致的信息暴露

CVE编号

CVE-2020-4071

利用情况

暂无

补丁情况

官方补丁

披露时间

2020-06-25

漏洞描述

In django-basic-auth-ip-whitelist before 0.3.4, a potential timing attack exists on websites where the basic authentication is used or configured, i.e. BASIC_AUTH_LOGIN and BASIC_AUTH_PASSWORD is set. Currently the string comparison between configured credentials and the ones provided by users is performed through a character-by-character string comparison. This enables a possibility that attacker may time the time it takes the server to validate different usernames and password, and use this knowledge to work out the valid credentials. This attack is understood not to be realistic over the Internet. However, it may be achieved from within local networks where the website is hosted, e.g. from inside a data centre where a website's server is located. Sites protected by IP address whitelisting only are unaffected by this vulnerability. This vulnerability has been fixed on version 0.3.4 of django-basic-auth-ip-whitelist. Update to version 0.3.4 as soon as possible and change basic authentication username and password configured on a Django project using this package. A workaround without upgrading to version 0.3.4 is to stop using basic authentication and use the IP whitelisting component only. It can be achieved by not setting BASIC_AUTH_LOGIN and BASIC_AUTH_PASSWORD in Django project settings.

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://github.com/tm-kn/django-basic-auth-ip-whitelist/security/advisories/G...
https://groups.google.com/forum/

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	django-basic-auth-ip-whitelist_project	django-basic-auth-ip-whitelist	*		Up to (excluding) 0.3.4

阿里云评分 2.4

• 攻击路径 本地
• 攻击复杂度 困难
• 权限要求 管控权限
• 影响范围 有限影响
• EXP成熟度 未验证
• 补丁情况 官方补丁
• 数据保密性 无影响
• 数据完整性 无影响
• 服务器危害 无影响
• 全网数量 N/A

CWE-ID	漏洞类型
CWE-208	通过时间差异性导致的信息暴露

Exp相关链接

- avd.aliyun.com