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地图 / CVE-2023-27533: Telnet option IAC injection

CVE-2023-27533: Telnet option IAC injection

注入与走私 / Failure to Sanitize Special Elements into a Different Plane (Special Element Injection) / #1891474

厂商
curl
严重程度
低危
赏金
—
弱点
Failure to Sanitize Special Elements into a Different Plane (Special Element Injection)
研究员
@nyymi
披露日期
2023-03-22
资产
https://github.com/curl/curl
CVE
CVE-2023-27533

该报告还没有中文解读。

原文摘录

摘自原文(1837 字符中的一小部分)
Summary: `CURLOPT_TELNETOPTIONS` allows setting various telnet options for telnet protocol. Due to missing encoding of "Interpret as Command" `IAC` (0xff) character, the attacker who can control these option values can escape out of the telnet subnegotiation and enter arbitrary TELNET commands (*) …
原文中的代码
20:57:34.454720 IP x.x.x.x.53864 > y.y.y.y.telnet: Flags [P.], seq 17:37, ack 22, win 2058, options [nop,nop,TS val 1459077881 ecr 3403052525], length 20 [telnet SB NEW-ENVIRON IS 0 0x61 0x1 0x62 SE]
        0x0000:  4502 0048 0000 4000 4006 265a XXXX XXXX   E..H..@.@.&ZXXXX
        0x0010:  YYYY …

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 curl 所有。

时间线

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

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