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CVE-2015-9097

Good to know:

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Date: June 12, 2017

The mail gem before 2.5.5 for Ruby (aka A Really Ruby Mail Library) 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.

Language: Ruby

Severity Score

Related Resources (11)

https://rubysec.com/advisories/mail-OSVDB-131677
https://github.com/rubysec/ruby-advisory-db/issues/215
http://openwall.com/lists/oss-security/2015/12/11/3
https://github.com/mikel/mail
https://github.com/advisories/GHSA-q86f-fmqf-qrf6
https://nvd.nist.gov/vuln/detail/CVE-2015-9097
https://hackerone.com/reports/137631
https://github.com/mikel/mail/commit/72befdc4dab3e6e288ce226a7da2aa474cf5be83
http://www.mbsd.jp/Whitepaper/smtpi.pdf
https://github.com/mikel/mail/pull/1097
https://www.mend.io/vulnerability-database/CVE-2015-9097

Severity Score

Weakness Type (CWE)

Improper Neutralization of CRLF Sequences ('CRLF Injection')

CWE-93

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): CHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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