sendmail through 8.17.2 allows SMTP smuggling in certain configurations. Remote attackers can use a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address, allowing bypass of an SPF protection mechanism. This occurs because sendmail supports <LF>.<CR><LF> but some other popular e-mail servers do not. This is resolved in 8.18 and later versions with 'o' in srv_features.
References
Configurations
History
15 Jun 2024, 09:15
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18 Jan 2024, 03:15
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09 Jan 2024, 07:15
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Summary | sendmail through 8.17.2 allows SMTP smuggling in certain configurations. Remote attackers can use a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address, allowing bypass of an SPF protection mechanism. This occurs because sendmail supports <LF>.<CR><LF> but some other popular e-mail servers do not. This is resolved in 8.18 and later versions with 'o' in srv_features. |
05 Jan 2024, 15:30
Type | Values Removed | Values Added |
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CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.3 |
CPE | cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* cpe:2.3:o:freebsd:freebsd:*:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* cpe:2.3:a:sendmail:sendmail:*:*:*:*:*:*:*:* |
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First Time |
Sendmail sendmail
Freebsd freebsd Freebsd Redhat Redhat enterprise Linux Sendmail |
|
CWE | CWE-345 | |
References | () https://access.redhat.com/security/cve/CVE-2023-51765 - Third Party Advisory | |
References | () https://fahrplan.events.ccc.de/congress/2023/fahrplan/events/11782.html - Technical Description | |
References | () http://www.openwall.com/lists/oss-security/2023/12/29/5 - Mailing List, Third Party Advisory | |
References | () http://www.openwall.com/lists/oss-security/2023/12/24/1 - Mailing List, Third Party Advisory | |
References | () https://sec-consult.com/blog/detail/smtp-smuggling-spoofing-e-mails-worldwide/ - Technical Description, Third Party Advisory | |
References | () http://www.openwall.com/lists/oss-security/2023/12/30/3 - Mailing List, Third Party Advisory | |
References | () https://www.openwall.com/lists/oss-security/2023/12/21/7 - Mailing List, Third Party Advisory | |
References | () https://github.com/freebsd/freebsd-src/commit/5dd76dd0cc19450133aa379ce0ce4a68ae07fb39#diff-afdf514b32ac88004952c11660c57bc96c3d8b2234007c1cbd8d7ed7fd7935cc - Patch | |
References | () https://www.openwall.com/lists/oss-security/2023/12/22/7 - Mailing List, Third Party Advisory | |
References | () http://www.openwall.com/lists/oss-security/2023/12/26/5 - Mailing List, Third Party Advisory | |
References | () https://bugzilla.redhat.com/show_bug.cgi?id=2255869 - Issue Tracking, Third Party Advisory | |
References | () http://www.openwall.com/lists/oss-security/2023/12/30/1 - Mailing List, Third Party Advisory | |
References | () https://www.youtube.com/watch?v=V8KPV96g1To - Exploit | |
References | () http://www.openwall.com/lists/oss-security/2023/12/25/1 - Mailing List, Third Party Advisory | |
References | () https://bugzilla.suse.com/show_bug.cgi?id=1218351 - Issue Tracking, Patch, Third Party Advisory |
04 Jan 2024, 18:15
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30 Dec 2023, 18:15
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30 Dec 2023, 01:15
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26 Dec 2023, 21:15
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26 Dec 2023, 16:15
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Summary | sendmail through at least 8.14.7 allows SMTP smuggling in certain configurations. Remote attackers can use a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address, allowing bypass of an SPF protection mechanism. This occurs because sendmail supports <LF>.<CR><LF> but some other popular e-mail servers do not. |
24 Dec 2023, 12:15
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24 Dec 2023, 06:15
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New CVE |
Information
Published : 2023-12-24 06:15
Updated : 2024-06-15 09:15
NVD link : CVE-2023-51765
Mitre link : CVE-2023-51765
CVE.ORG link : CVE-2023-51765
JSON object : View
Products Affected
sendmail
- sendmail
freebsd
- freebsd
redhat
- enterprise_linux
CWE
CWE-345
Insufficient Verification of Data Authenticity