Vulnerability in Ruby-Lang Ruby
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.
Vulnerability class: CRLF Injection
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.037 (89.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.037 · newest: 0.037 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.debian.org/security/2017/dsa-3966 (vendor-advisory)
- hackerone.com/reports/137631 (Third Party Advisory)
- lists.debian.org/debian-lts-announce/2018/07/msg00012.html (mailing-list)
- github.com/rubysec/ruby-advisory-db/issues/215 (Third Party Advisory, Issue Tracking)
- github.com/ruby/ruby/commit/0827a7e52ba3d957a634b063bf5a391239b9ffee (Patch, Third Party Advisory)
- www.mbsd.jp/Whitepaper/smtpi.pdf (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2015-9096?
- CVE-2015-9096 is a medium-severity vulnerability in Ruby-Lang Ruby, classified under CRLF Injection. CVSS score: 6.1/10. Published 2017-06-12.
- How severe is CVE-2015-9096?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2015-9096 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.