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CVE-2023-51765 Detail

Current Description

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.


View Analysis Description

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.openwall.com/lists/oss-security/2023/12/24/1 Mailing List  Third Party Advisory 
http://www.openwall.com/lists/oss-security/2023/12/25/1 Mailing List  Third Party Advisory 
http://www.openwall.com/lists/oss-security/2023/12/26/5 Mailing List  Third Party Advisory 
http://www.openwall.com/lists/oss-security/2023/12/29/5 Mailing List  Third Party Advisory 
http://www.openwall.com/lists/oss-security/2023/12/30/1 Mailing List  Third Party Advisory 
http://www.openwall.com/lists/oss-security/2023/12/30/3 Mailing List  Third Party Advisory 
https://access.redhat.com/security/cve/CVE-2023-51765 Third Party Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=2255869 Issue Tracking  Third Party Advisory 
https://bugzilla.suse.com/show_bug.cgi?id=1218351 Issue Tracking  Patch  Third Party Advisory 
https://fahrplan.events.ccc.de/congress/2023/fahrplan/events/11782.html Technical Description 
https://github.com/freebsd/freebsd-src/commit/5dd76dd0cc19450133aa379ce0ce4a68ae07fb39#diff-afdf514b32ac88004952c11660c57bc96c3d8b2234007c1cbd8d7ed7fd7935cc Patch 
https://lists.debian.org/debian-lts-announce/2024/06/msg00004.html
https://lwn.net/Articles/956533/
https://sec-consult.com/blog/detail/smtp-smuggling-spoofing-e-mails-worldwide/ Technical Description  Third Party Advisory 
https://www.openwall.com/lists/oss-security/2023/12/21/7 Mailing List  Third Party Advisory 
https://www.openwall.com/lists/oss-security/2023/12/22/7 Mailing List  Third Party Advisory 
https://www.youtube.com/watch?v=V8KPV96g1To Exploit 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-345 Insufficient Verification of Data Authenticity cwe source acceptance level NIST  

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Change History

12 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2023-51765
NVD Published Date:
12/24/2023
NVD Last Modified:
06/15/2024
Source:
MITRE