Mail gem up to 2.5.4 on Ruby SMTP crlf injection

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Mail gem up to 2.5.4 on Ruby. It has been declared as critical. This vulnerability affects unknown code of the component SMTP Handler. Such manipulation leads to crlf injection. This vulnerability is listed as CVE-2015-9097. The attack may be performed from remote. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Mail gem up to 2.5.4 on Ruby (Ruby Gem). It has been rated as critical. Affected by this issue is some unknown processing of the component SMTP Handler. The manipulation with an unknown input leads to a crlf injection vulnerability. Using CWE to declare the problem leads to CWE-93. The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The bug was discovered 12/11/2015. The weakness was presented 06/12/2017 (Website). The advisory is shared for download at openwall.com. This vulnerability is handled as CVE-2015-9097 since 06/12/2017. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 549 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 2.5.5 eliminates this vulnerability.

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Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.7
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Crlf injection
CWE: CWE-93 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Mail gem 2.5.5
Patch: github.com

Timelineinfo

12/11/2015 🔍
06/12/2017 +549 days 🔍
06/12/2017 +0 days 🔍
06/12/2017 +0 days 🔍
06/13/2017 +1 days 🔍
12/08/2022 +2004 days 🔍

Sourcesinfo

Advisory: 72befdc4dab3e6e288ce226a7da2aa474cf5be83
Status: Not defined

CVE: CVE-2015-9097 (🔍)
GCVE (CVE): GCVE-0-2015-9097
GCVE (VulDB): GCVE-100-102248

Entryinfo

Created: 06/13/2017 08:53
Updated: 12/08/2022 12:44
Changes: 06/13/2017 08:53 (59), 10/16/2019 10:36 (1), 12/08/2022 12:36 (5), 12/08/2022 12:44 (1)
Complete: 🔍
Cache ID: 216::103

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