POJIA破甲
地图 / SMTP CRLF Command Injection in CURLOPT_MAIL_FROM and CURLOPT_MAIL_RCPT

SMTP CRLF Command Injection in CURLOPT_MAIL_FROM and CURLOPT_MAIL_RCPT

注入与走私 / CRLF 注入 / #3414088

厂商
curl
严重程度
低危
赏金
—
弱点
CRLF 注入
研究员
@bau1u
披露日期
2025-11-10
资产
https://github.com/curl/curl
CVE
—

该报告还没有中文解读。

原文摘录

摘自原文(5793 字符中的一小部分)
libcurl's SMTP implementation accepts CR (`\r`) and LF (`\n`) bytes in mailbox address inputs without validation. These control characters are inserted directly into SMTP commands, allowing attackers to inject arbitrary SMTP protocol commands. This enables envelope manipulation, adding unauthorized …
原文中的代码
chmod +x poc_smtp_crlf_injection.sh

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 @bau1u · 版权归作者与 curl 所有

同类报告

CRLF Injection in urllibInternet Bug Bounty · 2020-05-06 · $1,000CRLF injection leads to internal XSS on PangleGlobalTikTok · 2023-10-31Creating malformed URLs via new line character in-between two URLs leads to misrepresented hyperlinks in Tweets/DMsX / xAI · 2020-01-24Grafana RCE via SMTP server parameter injectionAiven Ltd · 2022-11-08 · $5,000Security bug https://bugzilla.mozilla.org/oauth/authorize - CRLF Header injection via "redirect_uri" parameterMozilla · 2023-10-28 · $200[synthetics.newrelic.com] SMTP header injection leads to (mass) arbitrary email sendingNew Relic · — · $500