POJIA破甲
地图 / Ratelimiting can be bypassed using IPv6 subnets

Ratelimiting can be bypassed using IPv6 subnets

身份认证 / 认证尝试次数未限制 / #1154003

厂商
Nextcloud
严重程度
低危
赏金
—
弱点
认证尝试次数未限制
研究员
@sjw
披露日期
2021-07-01
资产
nextcloud/server
CVE
CVE-2021-22915

该报告还没有中文解读。

原文摘录

摘自原文(1116 字符中的一小部分)
Nextcloud hardcodes IPv6 subnets to /128. End users get at least a /64 subnet (more than the whole IPv4 address space!), most providers assign even larger subnets like /48. The subnet is used to block bruteforce attempts [3] and rate limiting [4]. An attacker can easily generate random addresses …

默认不展示报告全文。以上为简短摘录,完整复现过程请阅读原文。版权归研究员与 Nextcloud 所有。

时间线

  • 报告提交
  • 公开披露
阅读 HackerOne 原文 ↗作者 @sjw · 版权归作者与 Nextcloud 所有

同类报告

Account Takeover worki.ruMail.ru · — · $1,700Account TakeOver at my.33slona.ruMail.ru · — · $1,700Account Takeover at vseapteki.ruMail.ru · — · $2,000Account TakeOver through password recovery at am.ruMail.ru · — · $3,000SMS Brute Force Possibility via https://youdrive.today/login/web/code can lead to Account TakeoverMail.ru · —Lack of rate limitation on careers site allows the attacker to brute force the verification codeTikTok · 2021-02-11