CVE - CVE-2023-51765

CVE-ID
CVE-2023-51765	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://access.redhat.com/security/cve/CVE-2023-51765 MISC:https://bugzilla.redhat.com/show_bug.cgi?id=2255869 MISC:https://bugzilla.suse.com/show_bug.cgi?id=1218351 MISC:https://fahrplan.events.ccc.de/congress/2023/fahrplan/events/11782.html MISC:https://github.com/freebsd/freebsd-src/commit/5dd76dd0cc19450133aa379ce0ce4a68ae07fb39#diff-afdf514b32ac88004952c11660c57bc96c3d8b2234007c1cbd8d7ed7fd7935cc MISC:https://lwn.net/Articles/956533/ MISC:https://sec-consult.com/blog/detail/smtp-smuggling-spoofing-e-mails-worldwide/ MISC:https://www.openwall.com/lists/oss-security/2023/12/21/7 MISC:https://www.openwall.com/lists/oss-security/2023/12/22/7 MISC:https://www.youtube.com/watch?v=V8KPV96g1To MLIST:[debian-lts-announce] 20240615 [SECURITY] [DLA 3829-1] sendmail security update URL:https://lists.debian.org/debian-lts-announce/2024/06/msg00004.html MLIST:[oss-security] 20231224 Re: Re: New SMTP smuggling attack URL:http://www.openwall.com/lists/oss-security/2023/12/24/1 MLIST:[oss-security] 20231225 Re: Re: New SMTP smuggling attack URL:http://www.openwall.com/lists/oss-security/2023/12/25/1 MLIST:[oss-security] 20231226 Re: New SMTP smuggling attack URL:http://www.openwall.com/lists/oss-security/2023/12/26/5 MLIST:[oss-security] 20231229 Re: Re: New SMTP smuggling attack URL:http://www.openwall.com/lists/oss-security/2023/12/29/5 MLIST:[oss-security] 20231230 Re: Re: New SMTP smuggling attack URL:http://www.openwall.com/lists/oss-security/2023/12/30/1 MLIST:[oss-security] 20231230 Re: Re: New SMTP smuggling attack URL:http://www.openwall.com/lists/oss-security/2023/12/30/3
Assigning CNA
MITRE Corporation
Date Record Created
20231224	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20231224)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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