CVE-2015-9096
UnknownEPSS 3.65%
Last modified
CVE-2015-9096 is a vulnerability of currently unknown severity. Net::SMTP in Ruby before 2.4.0 is vulnerable to SMTP command injection via CRLF sequences in a RCPT TO or MAIL FROM command, as demonstrated by CRLF sequences immediately before and after a DATA substring.. EPSS estimates a 3.65% chance of exploitation in the next 30 days.
Description
Net::SMTP in Ruby before 2.4.0 is vulnerable to SMTP command injection via CRLF sequences in a RCPT TO or MAIL FROM command, as demonstrated by CRLF sequences immediately before and after a DATA substring.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Ruby-Lang | Ruby | <= 2.4.0 | Rc1 |
References
- http://www.mbsd.jp/Whitepaper/smtpi.pdfExploit, Third Party Advisory
- https://github.com/ruby/ruby/commit/0827a7e52ba3d957a634b063bf5a391239b9ffeePatch, Third Party Advisory
- https://github.com/rubysec/ruby-advisory-db/issues/215Issue Tracking, Third Party Advisory
- https://hackerone.com/reports/137631Third Party Advisory
- http://www.mbsd.jp/Whitepaper/smtpi.pdfExploit, Third Party Advisory
- https://github.com/ruby/ruby/commit/0827a7e52ba3d957a634b063bf5a391239b9ffeePatch, Third Party Advisory
- https://github.com/rubysec/ruby-advisory-db/issues/215Issue Tracking, Third Party Advisory
- https://hackerone.com/reports/137631Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2015-9096?
Net::SMTP in Ruby before 2.4.0 is vulnerable to SMTP command injection via CRLF sequences in a RCPT TO or MAIL FROM command, as demonstrated by CRLF sequences immediately before and after a DATA substring.
How severe is CVE-2015-9096?
Severity scoring for CVE-2015-9096 is pending analysis. The EPSS model estimates a 3.65% probability of exploitation in the next 30 days.
How do I fix CVE-2015-9096?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2015-9096?
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Scan your code nowSource: NVD / NIST