Medium severity · published Jun 12, 2017
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…
6.1
CVSS
3.7%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)3.7% · higher than 90% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RU
Ruby · Ruby-lang
through 2.4.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2015-9096
CVE.org
https://www.cve.org/CVERecord?id=CVE-2015-9096
Exploit
http://www.mbsd.jp/Whitepaper/smtpi.pdf
Patch
https://github.com/ruby/ruby/commit/0827a7e52ba3d957a634b063bf5a391239b9ffee
Issue Tracking
https://github.com/rubysec/ruby-advisory-db/issues/215
Third Party Advisory
https://hackerone.com/reports/137631
lists.debian.org
https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html
www.debian.org
https://www.debian.org/security/2017/dsa-3966
More from Ruby
9.8
CVE-2022-28738
A double free was found in the Regexp compiler in Ruby 3.x before 3.0.4 and 3.1.x before 3.1.2
9.8
CVE-2016-2338
An exploitable heap overflow vulnerability exists in the Psych::Emitter start_document function of Ruby
9.8
CVE-2011-4121
The OpenSSL extension of Ruby (Git trunk) versions after 2011-09-01 up to 2011-11-03 always generated an exponent value of '1' to be used for private RSA key generation
9.8
CVE-2018-16395
An issue was discovered in the OpenSSL library in Ruby before 2.3.8, 2.4.x before 2.4.5, 2.5.x before 2.5.2, and 2.6.x before 2.6.0-preview3
9.8
CVE-2017-17790
The lazy_initialize function in lib/resolv.rb in Ruby through 2.4.3 uses Kernel#open, which might allow Command Injection attacks, as demonstrated by a Resolv::Hosts::new argument…