Veracode Vulnerability DatabaseVERACODE:45507SMTP Smuggling
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
AI Score
Confidence
Low
EPSS
Percentile
54.6%
sendmail is vulnerable to SMTP Smuggling. The vulnerability is due to injecting email messages with a spoofed MAIL FROM address using sendmail supports . sequence which allows malicious emails to be accepted as legitimate and leads to bypass of SPF protection mechanisms.
References
www.openwall.com/lists/oss-security/2023/12/24/1
www.openwall.com/lists/oss-security/2023/12/25/1
www.openwall.com/lists/oss-security/2023/12/26/5
www.openwall.com/lists/oss-security/2023/12/29/5
www.openwall.com/lists/oss-security/2023/12/30/1
www.openwall.com/lists/oss-security/2023/12/30/3
access.redhat.com/security/cve/CVE-2023-51765
bugzilla.redhat.com/show_bug.cgi?id=2255869
bugzilla.suse.com/show_bug.cgi?id=1218351
fahrplan.events.ccc.de/congress/2023/fahrplan/events/11782.html
github.com/freebsd/freebsd-src/commit/5dd76dd0cc19450133aa379ce0ce4a68ae07fb39#diff-afdf514b32ac88004952c11660c57bc96c3d8b2234007c1cbd8d7ed7fd7935cc
lists.debian.org/debian-lts-announce/2024/06/msg00004.html
lwn.net/Articles/956533/
sec-consult.com/blog/detail/smtp-smuggling-spoofing-e-mails-worldwide/
security-tracker.debian.org/tracker/CVE-2023-51765
www.openwall.com/lists/oss-security/2023/12/21/7
www.openwall.com/lists/oss-security/2023/12/22/7
www.youtube.com/watch?v=V8KPV96g1To
Related
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
AI Score
Confidence
Low
EPSS
Percentile
54.6%