Vulnerability-Lookup

BDU:2024-02339 (CVE-2023-51765)

Vulnerability from fstec – Published: 2024-03-27 – Updated: 2025-05-26 – View on bdu.fstec.ru Exploit publicly available Fixed

Title

Уязвимость программного обеспечения SendMail SMTP Server , связанная с недостаточной проверкой подлинности данных, позволяющая нарушителю обойти механизм защиты и внедрить сообщения электронной почты с поддельным адресом MAIL FROM

Summary

Уязвимость программного обеспечения SendMail SMTP Server связана с недостаточной проверкой подлинности данных. Эксплуатация уязвимости может позволить нарушителю, действующему удалённо, обойти механизм защиты и внедрить сообщения электронной почты с поддельным адресом MAIL FROM

Severity

5.0 (Medium) CVSS 2.0


                      
                        AV:N/AC:L/Au:N/C:N/I:P/A:N

5.3 (Medium) CVSS 3.0


                      
                        CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Class

Code vulnerability

Status

Confirmed by the vendor

Exploitation

Functionality abuse

Incidents

Being clarified

Remediation

Software update

CWE

CWE-345 - Недостаточная проверка подлинности данных

Aliases

CVE-2023-51765

References

7 references

URL
http://www.openwall.com/lists/oss-security/2023/12/24/1
https://www.openwall.com/lists/oss-security/2023/12/21/7
https://sec-consult.com/blog/detail/smtp-smuggling-spoofing-e-mails-worldwide/
https://nvd.nist.gov/vuln/detail/CVE-2023-51765
https://github.com/freebsd/freebsd-src/commit/5dd76dd0cc19450133aa379ce0ce4a68a…
https://www.openwall.com/lists/oss-security/2023/12/22/7
http://repo.red-soft.ru/redos/7.3c/x86_64/updates/

Impacted products

4 products from 5 vendors

Vendors

Red Hat, Inc., ООО «Ред Софт», Sendmail Inc., FreeBSD Project

Products

Red Hat Enterprise Linux, РЕД ОС (запись в едином реестре российских программ №3751), SendMail SMTP Server, FreeBSD

Versions

8.0 (Red Hat Enterprise Linux), 7.3 (РЕД ОС), 9.0 (Red Hat Enterprise Linux), до 8.18.0.2 (SendMail SMTP Server), до 11.0 (FreeBSD)

Product types

Operating system, Network software

Platforms

Red Hat, Inc. Red Hat Enterprise Linux 8.0, ООО «Ред Софт» РЕД ОС 7.3 (запись в едином реестре российских программ №3751), Inc. Red Hat Enterprise Linux 9.0, FreeBSD Project FreeBSD до 11.0

Mitigations

Обновление программного обеспечения SendMail SMTP Server до версии 8.18.0.2 или новее Для программных продуктов Red Hat Inc.: https://access.redhat.com/security/cve/CVE-2023-51765 Для РедОС: http://repo.red-soft.ru/redos/7.3c/x86_64/updates/

JSON

To clipboard

{
  "CVSS 2.0": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
  "CVSS 3.0": "AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
  "CVSS 4.0": null,
  "remediation_\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": null,
  "remediation_\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435": null,
  "\u0412\u0435\u043d\u0434\u043e\u0440 \u041f\u041e": "Red Hat, Inc., \u041e\u041e\u041e \u00ab\u0420\u0435\u0434 \u0421\u043e\u0444\u0442\u00bb, Sendmail Inc., FreeBSD Project",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "8.0 (Red Hat Enterprise Linux), 7.3 (\u0420\u0415\u0414 \u041e\u0421), 9.0 (Red Hat Enterprise Linux), \u0434\u043e 8.18.0.2 (SendMail SMTP Server), \u0434\u043e 11.0 (FreeBSD)",
  "\u0412\u043e\u0437\u043c\u043e\u0436\u043d\u044b\u0435 \u043c\u0435\u0440\u044b \u043f\u043e \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044e": "\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f SendMail SMTP Server \u0434\u043e \u0432\u0435\u0440\u0441\u0438\u0438 8.18.0.2 \u0438\u043b\u0438 \u043d\u043e\u0432\u0435\u0435\n\n\u0414\u043b\u044f \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u044b\u0445 \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u043e\u0432 Red Hat Inc.:\nhttps://access.redhat.com/security/cve/CVE-2023-51765\n\n\u0414\u043b\u044f \u0420\u0435\u0434\u041e\u0421: http://repo.red-soft.ru/redos/7.3c/x86_64/updates/",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "24.12.2023",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "26.05.2025",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "27.03.2024",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2024-02339",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u044b \u0434\u0440\u0443\u0433\u0438\u0445 \u0441\u0438\u0441\u0442\u0435\u043c \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "CVE-2023-51765",
  "\u0418\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430",
  "\u041a\u043b\u0430\u0441\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043a\u043e\u0434\u0430",
  "\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u041f\u041e": "Red Hat Enterprise Linux, \u0420\u0415\u0414 \u041e\u0421 (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u21163751), SendMail SMTP Server, FreeBSD",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u041e\u0421 \u0438 \u0442\u0438\u043f \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b": "Red Hat, Inc. Red Hat Enterprise Linux 8.0 , \u041e\u041e\u041e \u00ab\u0420\u0435\u0434 \u0421\u043e\u0444\u0442\u00bb \u0420\u0415\u0414 \u041e\u0421 7.3  (\u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0435\u0434\u0438\u043d\u043e\u043c \u0440\u0435\u0435\u0441\u0442\u0440\u0435 \u0440\u043e\u0441\u0441\u0438\u0439\u0441\u043a\u0438\u0445 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c \u21163751), Red Hat, Inc. Red Hat Enterprise Linux 9.0 , FreeBSD Project FreeBSD \u0434\u043e 11.0 ",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f SendMail SMTP Server , \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u0430\u044f \u0441 \u043d\u0435\u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e\u0439 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u043e\u0439 \u043f\u043e\u0434\u043b\u0438\u043d\u043d\u043e\u0441\u0442\u0438 \u0434\u0430\u043d\u043d\u044b\u0445, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u043e\u0431\u043e\u0439\u0442\u0438 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c \u0437\u0430\u0449\u0438\u0442\u044b \u0438 \u0432\u043d\u0435\u0434\u0440\u0438\u0442\u044c \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u044f \u044d\u043b\u0435\u043a\u0442\u0440\u043e\u043d\u043d\u043e\u0439 \u043f\u043e\u0447\u0442\u044b \u0441 \u043f\u043e\u0434\u0434\u0435\u043b\u044c\u043d\u044b\u043c \u0430\u0434\u0440\u0435\u0441\u043e\u043c MAIL FROM",
  "\u041d\u0430\u043b\u0438\u0447\u0438\u0435 \u044d\u043a\u0441\u043f\u043b\u043e\u0439\u0442\u0430": "\u0421\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u0435\u0442 \u0432 \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u043c \u0434\u043e\u0441\u0442\u0443\u043f\u0435",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "\u041d\u0435\u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u0430\u044f \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 \u043f\u043e\u0434\u043b\u0438\u043d\u043d\u043e\u0441\u0442\u0438 \u0434\u0430\u043d\u043d\u044b\u0445 (CWE-345)",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f SendMail SMTP Server \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u043d\u0435\u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e\u0439 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u043e\u0439 \u043f\u043e\u0434\u043b\u0438\u043d\u043d\u043e\u0441\u0442\u0438 \u0434\u0430\u043d\u043d\u044b\u0445. \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442\u044c \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e, \u0434\u0435\u0439\u0441\u0442\u0432\u0443\u044e\u0449\u0435\u043c\u0443 \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e, \u043e\u0431\u043e\u0439\u0442\u0438 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c \u0437\u0430\u0449\u0438\u0442\u044b \u0438 \u0432\u043d\u0435\u0434\u0440\u0438\u0442\u044c \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u044f \u044d\u043b\u0435\u043a\u0442\u0440\u043e\u043d\u043d\u043e\u0439 \u043f\u043e\u0447\u0442\u044b \u0441 \u043f\u043e\u0434\u0434\u0435\u043b\u044c\u043d\u044b\u043c \u0430\u0434\u0440\u0435\u0441\u043e\u043c MAIL FROM",
  "\u041f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": null,
  "\u041f\u0440\u043e\u0447\u0430\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f": null,
  "\u0421\u0432\u044f\u0437\u044c \u0441 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u0430\u043c\u0438 \u0418\u0411": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u0421\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f": "\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438": "\u0417\u043b\u043e\u0443\u043f\u043e\u0442\u0440\u0435\u0431\u043b\u0435\u043d\u0438\u0435 \u0444\u0443\u043d\u043a\u0446\u0438\u043e\u043d\u0430\u043b\u043e\u043c",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "http://www.openwall.com/lists/oss-security/2023/12/24/1 \nhttps://www.openwall.com/lists/oss-security/2023/12/21/7 \nhttps://sec-consult.com/blog/detail/smtp-smuggling-spoofing-e-mails-worldwide/ \nhttps://nvd.nist.gov/vuln/detail/CVE-2023-51765 \nhttps://github.com/freebsd/freebsd-src/commit/5dd76dd0cc19450133aa379ce0ce4a68ae07fb39#diff-afdf514b32ac88004952c11660c57bc96c3d8b2234007c1cbd8d7ed7fd7935cc https://www.openwall.com/lists/oss-security/2023/12/22/7\nhttp://repo.red-soft.ru/redos/7.3c/x86_64/updates/",
  "\u0421\u0442\u0430\u0442\u0443\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0435\u043c",
  "\u0422\u0438\u043f \u041f\u041e": "\u041e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u0430\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u0430, \u0421\u0435\u0442\u0435\u0432\u043e\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0435 \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u043e",
  "\u0422\u0438\u043f \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "CWE-345",
  "\u0423\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0421\u0440\u0435\u0434\u043d\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 2.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 5)\n\u0421\u0440\u0435\u0434\u043d\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 3.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 5,3)"
}

CVE-2023-51765 (GCVE-0-2023-51765)

Vulnerability from cvelistv5 – Published: 2023-12-24 00:00 – Updated: 2024-08-02 22:48

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.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root Scorecard

References

17 references

URL	Tags
https://sec-consult.com/blog/detail/smtp-smugglin…
https://www.openwall.com/lists/oss-security/2023/…
https://www.openwall.com/lists/oss-security/2023/…
https://github.com/freebsd/freebsd-src/commit/5dd…
http://www.openwall.com/lists/oss-security/2023/12/24/1	mailing-list
http://www.openwall.com/lists/oss-security/2023/12/25/1	mailing-list
https://bugzilla.suse.com/show_bug.cgi?id=1218351
https://bugzilla.redhat.com/show_bug.cgi?id=2255869
https://access.redhat.com/security/cve/CVE-2023-51765
https://fahrplan.events.ccc.de/congress/2023/fahr…
http://www.openwall.com/lists/oss-security/2023/12/26/5	mailing-list
http://www.openwall.com/lists/oss-security/2023/12/29/5	mailing-list
http://www.openwall.com/lists/oss-security/2023/12/30/3	mailing-list
http://www.openwall.com/lists/oss-security/2023/12/30/1	mailing-list
https://www.youtube.com/watch?v=V8KPV96g1To
https://lwn.net/Articles/956533/
https://lists.debian.org/debian-lts-announce/2024…	mailing-list

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T22:48:11.197Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://sec-consult.com/blog/detail/smtp-smuggling-spoofing-e-mails-worldwide/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.openwall.com/lists/oss-security/2023/12/22/7"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.openwall.com/lists/oss-security/2023/12/21/7"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/freebsd/freebsd-src/commit/5dd76dd0cc19450133aa379ce0ce4a68ae07fb39#diff-afdf514b32ac88004952c11660c57bc96c3d8b2234007c1cbd8d7ed7fd7935cc"
          },
          {
            "name": "[oss-security] 20231224 Re: Re: New SMTP smuggling attack",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2023/12/24/1"
          },
          {
            "name": "[oss-security] 20231225 Re: Re: New SMTP smuggling attack",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2023/12/25/1"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://bugzilla.suse.com/show_bug.cgi?id=1218351"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2255869"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://access.redhat.com/security/cve/CVE-2023-51765"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://fahrplan.events.ccc.de/congress/2023/fahrplan/events/11782.html"
          },
          {
            "name": "[oss-security] 20231226 Re: New SMTP smuggling attack",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2023/12/26/5"
          },
          {
            "name": "[oss-security] 20231229 Re: Re: New SMTP smuggling attack",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2023/12/29/5"
          },
          {
            "name": "[oss-security] 20231230 Re: Re: New SMTP smuggling attack",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2023/12/30/3"
          },
          {
            "name": "[oss-security] 20231230 Re: Re: New SMTP smuggling attack",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2023/12/30/1"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.youtube.com/watch?v=V8KPV96g1To"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://lwn.net/Articles/956533/"
          },
          {
            "name": "[debian-lts-announce] 20240615 [SECURITY] [DLA 3829-1] sendmail security update",
            "tags": [
              "mailing-list",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00004.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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 \u003cLF\u003e.\u003cCR\u003e\u003cLF\u003e but some other popular e-mail servers do not. This is resolved in 8.18 and later versions with \u0027o\u0027 in srv_features."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-06-15T09:05:58.617Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://sec-consult.com/blog/detail/smtp-smuggling-spoofing-e-mails-worldwide/"
        },
        {
          "url": "https://www.openwall.com/lists/oss-security/2023/12/22/7"
        },
        {
          "url": "https://www.openwall.com/lists/oss-security/2023/12/21/7"
        },
        {
          "url": "https://github.com/freebsd/freebsd-src/commit/5dd76dd0cc19450133aa379ce0ce4a68ae07fb39#diff-afdf514b32ac88004952c11660c57bc96c3d8b2234007c1cbd8d7ed7fd7935cc"
        },
        {
          "name": "[oss-security] 20231224 Re: Re: New SMTP smuggling attack",
          "tags": [
            "mailing-list"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2023/12/24/1"
        },
        {
          "name": "[oss-security] 20231225 Re: Re: New SMTP smuggling attack",
          "tags": [
            "mailing-list"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2023/12/25/1"
        },
        {
          "url": "https://bugzilla.suse.com/show_bug.cgi?id=1218351"
        },
        {
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2255869"
        },
        {
          "url": "https://access.redhat.com/security/cve/CVE-2023-51765"
        },
        {
          "url": "https://fahrplan.events.ccc.de/congress/2023/fahrplan/events/11782.html"
        },
        {
          "name": "[oss-security] 20231226 Re: New SMTP smuggling attack",
          "tags": [
            "mailing-list"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2023/12/26/5"
        },
        {
          "name": "[oss-security] 20231229 Re: Re: New SMTP smuggling attack",
          "tags": [
            "mailing-list"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2023/12/29/5"
        },
        {
          "name": "[oss-security] 20231230 Re: Re: New SMTP smuggling attack",
          "tags": [
            "mailing-list"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2023/12/30/3"
        },
        {
          "name": "[oss-security] 20231230 Re: Re: New SMTP smuggling attack",
          "tags": [
            "mailing-list"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2023/12/30/1"
        },
        {
          "url": "https://www.youtube.com/watch?v=V8KPV96g1To"
        },
        {
          "url": "https://lwn.net/Articles/956533/"
        },
        {
          "name": "[debian-lts-announce] 20240615 [SECURITY] [DLA 3829-1] sendmail security update",
          "tags": [
            "mailing-list"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00004.html"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2023-51765",
    "datePublished": "2023-12-24T00:00:00.000Z",
    "dateReserved": "2023-12-24T00:00:00.000Z",
    "dateUpdated": "2024-08-02T22:48:11.197Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

BDU:2024-02339 (CVE-2023-51765)

CVE-2023-51765 (GCVE-0-2023-51765)

Tags

Sightings

Nomenclature

Related by attack behaviour